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Journal articles on the topic 'Octahydro-1'

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Published: 4 June 2021

Last updated: 2 February 2022

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1

Goodridge, RJ, TW Hambley, and DD Ridley. "Preparations and Crystal-Structures of the 2-Oxides of Some Octahydro-3,2,1-Benzoxathiazines and Octahydro-2h-3,1,2-Benzoxazaphosphorines." Australian Journal of Chemistry 39, no. 4 (1986): 591. http://dx.doi.org/10.1071/ch9860591.

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The cis -and trans-fused 1-benzyl-1,4,4a,5,6,7,8,8a-octahydro-3,2,1- benzoxathiazine 2- oxides and cis - and trans-fused 1-benzyl-2-phenyl-1,4,4a,5,6,7,8,8a-octahydro-2H-3,1,2-benzoxazaphosphorine 2-oxides have been prepared from the cis- and trans-2-benzylaminocyclohexanemethanols and their structures have been determined by n.m.r .and crystallographic methods.

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2

Peng, Wan Xi, Hong Chen Qi, Zhong Feng Zhang, and Lan Sheng Wang. "Py-GC/MS Analysis on Biomedicine of Benzene/Ethanol Extractives from Eucalyptus camaldulensis Biomass." Key Engineering Materials 467-469 (February 2011): 1702–5. http://dx.doi.org/10.4028/www.scientific.net/kem.467-469.1702.

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The benzene/ethanol extractives of Eucalyptus camaldulensis biomass were identified by Py-GC/MS to find out biomedical application. The main 350°С pyrolysis components were 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a-octahydro-1,4a-dimethyl-7-(1-methylethyl)- (21.22%), .beta.-sitosterol acetate (6.4%), stigmasterol, 22,23-dihydro-(5.87%), ergosta-4,6,22-trien-3.beta.-ol(3.6%), etc. The main 350°С pyrolysis components were 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a-octahydro-1,4a-dimethyl-7-(1-methylethyl)- ( 23.58%), ergosta-4,6,22-trien- 3.alpha.-ol(6.27%), decanoic acid, 1,2,3

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3

Bhat, Sujata V., Rohan S. Pawar, and P. Rajakannu. "Facile One-Pot Synthesis and Crystal Structure of 2:1 Adducts of Myrcene (or Ocimene) with Benzoquinones." Letters in Organic Chemistry 17, no. 8 (2020): 624–27. http://dx.doi.org/10.2174/1570178617666200227110001.

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One-pot tandem oxidation and double Diels-Alder reaction of myrcene or ocimene with in situ generated 1,4-benzoquinone or 1,2-benzoquinone at 0°C for 1.5 h yielded polyalkylated 1,4,4a,5,8,8a,9a,10a-octahydro-9,10-anthracenediones and bis(alkylated) 9,10-phenanthrenedione respectively. The structure of novel bis-adduct from ocimene, (1R,4aR,5S,8aS,9aS,10aR)-rel- 1,4,4a,5,8,8a,9a,10a-octahydro-2,6-dimethyl-1,5-bis(3-methyl-2-buten-1-yl)-9,10-anthracenedione, was elucidated through single crystal X-ray analysis.

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4

Purwati, Purwati, and Sabirin Matsjeh. "ANALISIS KOMPONEN KIMIA EKSTRAK METANOL FRAKSI PETROLEUM ETER DAUN EUPATORIUM ODORATUM DENGAN GC-MS." Molekul 3, no. 1 (2008): 10. http://dx.doi.org/10.20884/1.jm.2008.3.1.41.

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The purpose of this investigation was to analize the organic compounds of Eupatorium odoratum leaf and identification of the compounds using Gas Chromatography Mass Spectrometry (GC-MS). The sample was soaked in metanol. The extract of metanol was partitioned using petroleum ether. The extracts obtained were analyzed and identified by GC-MS. The results showed that in the extract of petroleum ether contained the organic compounds: germacrene, isocaryophyllene, 2,6,6,9-tetramethyl-1,4,8-cycloundecatriene, 1-methyl-5-methylene-8-(1-methylethyl)-1,7-cyclodecadiene, 1,2,4a,5,8,8a-hexahydro-4,7-dim

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5

Li-Zhulanov, Nikolai, Alexandra Zakharenko, Arina Chepanova, et al. "A Novel Class of Tyrosyl-DNA Phosphodiesterase 1 Inhibitors That Contains the Octahydro-2H-chromen-4-ol Scaffold." Molecules 23, no. 10 (2018): 2468. http://dx.doi.org/10.3390/molecules23102468.

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Tyrosyl-DNA phosphodiesterase 1 (Tdp1) is a DNA repair enzyme that mends topoisomerase 1-mediated DNA damage. Tdp1 is a current inhibition target for the development of improved anticancer treatments, as its inhibition may enhance the therapeutic effect of topoisomerase 1 poisons. Here, we report a study on the development of a novel class of Tdp1 inhibitors that is based on the octahydro-2H-chromene scaffold. Inhibition and binding assays revealed that these compounds are potent inhibitors of Tdp1, with IC50 and KD values in the low micromolar concentration range. Molecular modelling predicte

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6

Griffiths, D. Vaughan, and Geoffrey Wilcox. "Synthetic and stereochemical studies of the octahydro-1-benzopyran system." Journal of the Chemical Society, Perkin Transactions 2, no. 4 (1988): 431. http://dx.doi.org/10.1039/p29880000431.

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7

Blinokhvatov, A. F., O. V. Markovtseva, S. V. Chivokin, et al. "Molecular complexes ofsym-octahydro-1-chalcogenaanthracene salts with aromatic compounds." Chemistry of Heterocyclic Compounds 31, no. 1 (1995): 23–27. http://dx.doi.org/10.1007/bf01171284.

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8

Mansur, Muhammad Abdullah Al, M. Mahboob Ali Siddiqi, Md Ahedul Akbor, and Koushik Saha. "Phytochemical Screening and GC-MS Chemical Profiling of Ethyl Acetate Extract of Seed and Stem of Anethum sowa Linn." Dhaka University Journal of Pharmaceutical Sciences 16, no. 2 (2018): 187–94. http://dx.doi.org/10.3329/dujps.v16i2.35256.

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Tahe phytochemical constituents from the ethyl acetate extracts of seed and stem of Anethum sowa were identified by qualitative and gas chromatography-mass spectroscopy (GC-MS). Qualitative analyses exhibited the presence of alkaloids, flavonoids, tannins, carbohydrate, steroids and terpenoids in both extracts. In GC-MS analysis of A. sowa 6 notable peaks (3,4,4a,5,6,7,8,9-Octahydro-2H-benzocyclohepten-2-one, 2,2,4,6,7-Pentamethyl- 1,2,3,4-tetrahydro quinoline, 5-Ethyl-2-methyl-pyridin-4-amine, 2-(2-Furyl) pyridine, 9-Ethyl 9-borabicyclo-[3.3.1]- nonane and 7-Methylenebicyclo-[4.2.0]-octane) a

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9

Bourke, David G., and David J. Collins. "The Conversion of Steroidal Ring B Lactones into Ortho Esters: Preparation of 7,7-Dimethoxy-6-oxaestra-1,3,5(10)-triene Derivatives." Australian Journal of Chemistry 51, no. 11 (1998): 1003. http://dx.doi.org/10.1071/c97179.

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17β-t-Butyldimethylsilyloxy-3-methoxy-6-oxaestra-1,3,5(10)-trien-7-one (1), prepared in three steps from 17b-hydroxy-3-methoxy-6-oxaestra-1,3,5(10),8-tetraen-7-one (5a), was converted via the corresponding phenolic acid into 1β-t-butyldimethylsilyloxy-5β-(2′-t-butyldimethylsilyloxy-4′-methoxyphenyl)-N,7aβ-dimethyl-N-phenyl-2,3,3aα,4,5,6,7,7a-octahydro-1H-indene-4α-carboxamide (17c). Subjection of (17c) to a reaction sequence with methyl trifluoromethanesulfonate, sodium methoxide/methanol, and then dry methanol/acetic acid gave a low yield (12%) of the ortho ester 3,7,7,17β-tetramethoxy- 6-oxa

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10

Schloegla, Martin, Carsten Trolla, Ulf Thewaltb, and Bernhard Riegera. "Semi-Hydrogenated, Asymmetric Metallocene Catalysts for the Propylene Polymerization." Zeitschrift für Naturforschung B 58, no. 6 (2003): 533–38. http://dx.doi.org/10.1515/znb-2003-0608.

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The hydrogenation of rac-[1-(9-η5-fluorenyl)-2-(5,6-cylopenta-2-methyl-1-η5-indenyl)ethane] metallocene dichlorides (1a: Zr, 1b: Hf) with PtO2/H2O/H2 is reported. The diastereoselective formation of exclusively rac-[1-(2,3,4,5,6,7,8,9-octahydro-η5-fluorenyl)-2-(2-methyl- 1,4,4a(R;S),5,6,7,7a(S;R),8-octahydro-s-η5-indacenyl)ethane]metallocene dichlorides (2a: Zr, 2b: Hf) was shown by 1H-NMR and by X-ray analysis of 2a. Both compounds were activated in situ with triisobutylaluminum/PhC+3 [B(C6F5)4]D and tested as catalysts in propylene polymerization reactions. Comparison to the non-hydrogenated

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11

Wang, Ai Jun, and Jian Zheng Qiao. "Measurement on Pyrolytic Active Materials of Wheat Straw Biomass by Py-GC-MS." Advanced Materials Research 496 (March 2012): 198–202. http://dx.doi.org/10.4028/www.scientific.net/amr.496.198.

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In order to find out its active materials, the extractives of wheat straw biomass were adsorbed and determined by Py-GC-MS. And the main constituents were 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a-octahydro-1,4a-dimethyl-7-(1-methylethyl)- (31.32%), 1,3-pentadiene,(z)- ( 4.5%), cyclobutene(2.17%), 1-nonadecene(2.12%), etc.

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12

Zhang, Zhong Feng, Chao Feng Zeng, Wan Xi Peng, and Xu Zhang. "Measurement on Pyrolytic Active Materials of Bagasse Biomass by Py-GC-MS." Advanced Materials Research 230-232 (May 2011): 301–5. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.301.

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In order to find out its active materials, the extractives of bagasse biomass were adsorbed and determined by Py-GC-MS. And the main constituents were 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a- octahydro-1,4a-di methyl-7-(1-methylethyl)-( 24.24%), nonadecane, 1-chloro-(4.36%), stigmast-4-en-3-one(3.94%), 1-nonadecene(3.84%), etc.

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13

Fernandes, Sylvia, P. Rajakannu, and Sujata V. Bhat. "Efficient catalyst for tandem solvent free enantioselective Knoevenagel-formal [3+3] cycloaddition and Knoevenagel-hetero-Diels–Alder reactions." RSC Advances 5, no. 83 (2015): 67706–11. http://dx.doi.org/10.1039/c5ra09865c.

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Tandem Knoevenagel-cycloaddition reactions forming bicyclic tetrahydro-2H-chromen-5(6H)-ones and tricyclic octahydro-2H-benzo[c]-chromen-1(6H)-ones are achieved with up to 98.8% ee in the presence of chiral LBA and titanium-isopropoxy-(S)-BINOLate.

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14

Hussain, Z., F. F. Fleming, R. E. Norman, and S. C. Chang. "(9S,9aR)-1,3,4,6,7,8,9,9a-Octahydro-2H-quinolizine-1-spiro-2'-(1',3'-dithiane)-9-carbonitrile." Acta Crystallographica Section C Crystal Structure Communications 52, no. 5 (1996): 1296–98. http://dx.doi.org/10.1107/s0108270195014016.

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15

Ma, Qing Zhi, Chao Feng Zeng, Wan Xi Peng, and Xu Zhang. "Analysis on Active Behavior of Bagasse by Py-GC-MS." Advanced Materials Research 230-232 (May 2011): 212–16. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.212.

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In order to find out its active behavior, the extractives of bagasse biomass were adsorbed and determined by Py-GC-MS. And the main constituents were 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a-octahydro-1,4a-di methyl-7- (1-methylethyl)-(52.25%), stigmastan- 3,5-diene (11.3%), 2(1h)-phenanthrenone, 3,4,4a, 9,10,10a-hexahydro-7-hydroxy-1,1,4a-tri methyl-8- (1-methylethyl) - (9.00%), 2- furancarboxaldehyde, 5-(hydroxym ethyl)- (6.25%), etc.

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16

Hua, D. H., N. Lagneau, J. G. Park, L. A. Good, and P. D. Robinson. "(1S,8S,8aS)-(+)-1-(tert-Butyldimethylsilyloxy)-8-hydroxy-1,2,3,5,6,7,8,8a-octahydro-5-indolizinone." Acta Crystallographica Section C Crystal Structure Communications 51, no. 11 (1995): 2301–4. http://dx.doi.org/10.1107/s0108270195004963.

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17

Masnovi, Michelle E., John Masnovi, and Steven M. Schildcrout. "Structure and Properties of 9,14,15,16,17,18,19,20-Octahydro-9,14[1′,4′]-benzenobenzo[b]triphenylene." Journal of Crystallography 2016 (June 20, 2016): 1–6. http://dx.doi.org/10.1155/2016/8129210.

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The compound 9,14,15,16,17,18,19,20-octahydro-9,14[1′,4′]-benzenobenzo[b]triphenylene, C28H24, was prepared by hydrogenation of the 4πs+4πs photocycloadduct of dibenz[a,c]anthracene and 1,3-cyclohexadiene with Pt/C in ethyl acetate. The X-ray diffraction analysis shows that the compound crystallizes in the monoclinic space group P21/c with the geometric parameters of a = 11.0090(17) Å, b = 13.733(2) Å, c = 13.091(2) Å, and β = 109.583(13)°. In addition to several close intramolecular contacts involving hydrogens derived from the dibenzanthracene moiety, long interannular C–C single bonds of ab

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18

Dolmazon, R., S. Gelin, R. Faure та H. Loiseleur. "tert-Butyl-5α octahydro-2,3α,3aα,4,5β,6,7,7aα benzofurannol-3β (1) et tert-butyl-5α octahydro-2,3β,3aβ,4,5β,6,7,7aβ benzofurannol-3α (2)". Acta Crystallographica Section C Crystal Structure Communications 42, № 8 (1986): 1058–61. http://dx.doi.org/10.1107/s0108270186093484.

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19

Bakos, J., S. Cserépi-Szucs, Á. Gömöry, C. Hegedüs, L. Markó, and Á. Szöllosy. "Asymmetric hydroformylation of styrene catalyzed by platinum complexes of chiral diphosphites with atropisomeric terminal moieties." Canadian Journal of Chemistry 79, no. 5-6 (2001): 725–30. http://dx.doi.org/10.1139/v01-085.

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To study the nature of steric and electronic effects of diphosphites, a novel diphosphite was synthesized and tested with regard of its catalytic performance in the hydroformylation of styrene catalyzed by platinum complexes. The novel ligand 3 was prepared by the reaction of enantiomerically pure pentane-2,4-diol with (S)-2-chloro-5,5',6,6',7,7',8,8'-octahydro-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine based on H8-BINOL (H8-BINOL = 5,5',6,6',7,7',8,8'-octahydro-1,1'-bi-2-naphthol). For a comparative study, the BINOL (1,1'-bi-2-naphthol) based analogue 4 of 3 has also been synthesized. Th

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20

Yates, Peter, та Shirley Stiver. "Photochemistry of cyclic α-hydroxy ketones. II. The nature of the photoproducts from 8a-hydroxy-4a-methyl-trans- and -cis-octahydronaphthalen-1(2H)-one and an interpretation of the contrast between the photochemistry of these and of analogous steroidal α-hydroxy ketones". Canadian Journal of Chemistry 66, № 3 (1988): 476–86. http://dx.doi.org/10.1139/v88-082.

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Photolysis of either 8a-hydroxy-4a-methyl-trans- or -cis-octahydro-naphthalen-1(2H)-one (3 or 4) in benzene gives a 96:4 mixture of the lactones, 5a-methyl-trans- and -cis-octahydro-1-benzoxepin-2(3H)-ones (7 and 8). Photolysis of 3 or 4 in ethanol gives identical mixtures of the lactones 7 and 8 and ethyl (2S*,1R*)- and (2R*,1R*)-2-hydroxy-1-methylcyclo-hexanebutyrates (11 and 12). Photolysis of the 2α-deutero derivatives of 3 or 4 in benzene gives mixtures of the 9a-, 3α-, and 3β-deutero derivatives of lactone 7. The striking difference between these results and those for photolyses of analo

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21

Denys, R., JC Coll, and BF Bowden. "Tropical Marine Algae. IX. A New Sesquiterpenoid Metabolite From the Red Alga Laurencia marianensis." Australian Journal of Chemistry 46, no. 6 (1993): 933. http://dx.doi.org/10.1071/ch9930933.

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An investigation of the natural products chemistry of the red alga Laurencia marianensis Yamada, a species whose chemistry has not previously been described in the literature, yielded the new metabolite 1-[(3′S*,3a′lR*,4′R*,7′S*,7a′S*)-7′-bromo-7a′-methyl-3′-(1′-methylethyl)octahydro-1′H-inden-4′-yl] ethanone (1) and the known metabolites deoxyprepacifenol (2) and pacifenol (3). The full n.m.r. characterization of (2) and (3) is reported for the first time.

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22

Brinkworth, Craig, Tomas Rozek, John H. Bowie, Brian W. Skelton, and Allan H. White. "Angucyclinones Related to Ochromycinone. IV. The Structures and Reactions of Unusual Diels-Alder Adducts Formed from Maleic Anhydride and Racemic 5,5-Dimethyl-3-vinylcyclohex-2-en-1-ol." Australian Journal of Chemistry 53, no. 5 (2000): 403. http://dx.doi.org/10.1071/ch00034.

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The Diels–Alder reaction between maleic anhydride and racemic 5,5-dimethyl-3-vinylcyclohex-2-en-1-ol gives two racemic diastereomers, the major product (2a,S,3R,8aS,8bR)-7,7-dimethyl-2-oxo-2a,3,4,6,7,8,8a,8b-octahydro-2H-benzo[cd]isobenzofuran-3-carboxylic acid (63% yield), and the minor product (2aR,3S,8aS,8bS)-7,7-dimethyl-2-oxo-2a,3,4,6,7,8,8a,8b-octahydro-2H-benzo[cd]isobenzofuran-3-carboxylic acid (9%). Epoxidation of the major product gives racemic (1aS,3R,3aS,5aR,8aS,8bR)-7,7-dimethyl-4 oxoperhydro-benzo[cd]oxireno[2,3-e]isobenzofuran-3-carboxylic acid in 81% yield, while opening of the

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23

HUSSAIN, Z., F. F. FLEMING, R. E. NORMAN, and S. C. CHANG. "ChemInform Abstract: (9S,9aR)-1,3,4,6,7,8,9,9a-Octahydro-2H-quinolizine-1-spiro-2′-(1′,3′- dithiane)-9-carbonitrile." ChemInform 27, no. 38 (2010): no. http://dx.doi.org/10.1002/chin.199638223.

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24

Wang, Ming-Zhong, Xiang-Hai Cai, Guo-Shun Du, and Xiao-Dong Luo. "A Novel Norditerpene from Eupatorium adenophorum." Zeitschrift für Naturforschung B 62, no. 4 (2007): 577–79. http://dx.doi.org/10.1515/znb-2007-0416.

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A novel norditerpene was isolated from the flower of Eupatorium adenophorum, named (4aR,7R,8S,8aR)-1,2,4a,5,6,7,8,8a-octahydro-8-[3-methylenebut-4-alyl]-4,4a,7,8-tetramethylnaphthalen- 2(1H)-one (1). Its structure was established by extensive NMR experiments. Based on the diversity of the side chains, a possible biodegradation pathway for the compound from the clerodane skeletone is proposed.

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Ma, Qing Zhi, Feng Juan Wu, Dang Quan Zhang, and Wan Xi Peng. "Py-GC-MS Analysis on Biomedical Materials from Extractives of Moso Bamboo for Biomedical Engineering." Key Engineering Materials 480-481 (June 2011): 231–34. http://dx.doi.org/10.4028/www.scientific.net/kem.480-481.231.

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In order to find out its potential biomedicines, the extractives of Moso bamboo were adsorbed and determined by Py-GC-MS. And the main constituents were 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a-octahydro-1,4a-dimethyl-7-(1-methylethyl)-, methyl ester(5.68%), glycerin(4.32%), .gamma.-sitosterol(2.53%), benzofuran, 2,3-dihydro-(2.24%), decanoic acid, 1,2,3-propanetriyl ester(2.23%), phenol, 2,6-dimethoxy-(1.93%), stigmast-5-en-3-ol, oleate(1.92%), dodecanoic acid, 1-(hydroxymethyl) -1,2-ethanediyl ester(1.84%), 2-furancarboxaldehyde,5-(hydroxymethyl)- (1.72%), etc.

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26

French, Kevin J., Yan Zhuang, Randy S. Schrecengost, Jean E. Copper, Zuping Xia, and Charles D. Smith. "Cyclohexyl-octahydro-pyrrolo[1,2-a]pyrazine-Based Inhibitors of Human N-Myristoyltransferase-1." Journal of Pharmacology and Experimental Therapeutics 309, no. 1 (2004): 340–47. http://dx.doi.org/10.1124/jpet.103.061572.

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27

González, María, Andrea Martínez, Marcos L. Rivadulla, and Berta Covelo. "(3aRS,7aSR)-7a-Methoxy-2-oxo-2,3,3a,4,5,6,7,7a-octahydro-1-benzofuran-4,4-dicarbonitrile." Acta Crystallographica Section E Structure Reports Online 68, no. 12 (2012): o3496. http://dx.doi.org/10.1107/s1600536812048519.

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Scognamiglio, J., C. S. Letizia, V. T. Politano, and A. M. Api. "Fragrance material review on 1-(1,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone (OTNE)." Food and Chemical Toxicology 62 (December 2013): S120—S132. http://dx.doi.org/10.1016/j.fct.2013.08.056.

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29

Ward, Dale E., та Yuanzhu Gai. "Synthesis of 10-methyl-Δ4-octalins by Diels–Alder reactions of 2H-thiopyran surrogates for 1-ethenyl-2-methylcyclohexene". Canadian Journal of Chemistry 75, № 6 (1997): 681–93. http://dx.doi.org/10.1139/v97-082.

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Diels–Alder reactions of 1-ethenyl-2-methylcyclohexene derivatives could be a versatile route to a variety of natural product skeletons that possess a 10-methyldecalin substructure with additional substitution at C-8 and C-9. These dienes are unreactive due (in part) to the presence of the vinyl methyl group, which destabilizes the necessary s-cis conformation. The use of 2H-thiopyran diene surrogates for 1-ethenyl-2-methylcyclohexene is investigated. The desired Diels–Alder adducts were not obtained by reaction of 6,7,8,8a-tetrahydro-5,5-dimethyl-3-tris(1-methylethyl)silyloxy-1H-2-benzothiopy

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30

Qiao, Jian Zheng, Yi Qiang Wu, Chao Feng Zeng, and Wan Xi Peng. "Analysis on Pyrolytic Behavior of Bagasse Multifunctional Materials by Py-GC-MS." Advanced Materials Research 230-232 (May 2011): 298–300. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.298.

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In order to learn of pyrolytic behavior of bagasse multifunctional materials, the extractives of bagasse biomass were adsorbed and determined by Py-GC-MS. And the main constituents were 1-phenanthrenecarboxylic acid,1,2,3,4,4a,9,10,10a-octahydro-1,4a-di methyl-7-(1-methylethyl)-( 37.99%), decanoic acid, 1,2,3-propanetriyl ester(5.73%), tridecane, 2-methyl-(5.09%), dodecanoic acid, 1-(hydroxymethyl) -1,2-ethanediyl ester(4.52%), stigmastan-3,5-diene(3.81%), glycine, furan-2-yl-methyl ester(3.45%), 1-hexacosene(2.18%), 1-docosene(2.08%), kaura-9(11),16-dien-18-oic acid, (4.alpha.)- (2.07%), etc.

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31

Ma, Qing Zhi, Feng Juan Wu, Dang Quan Zhang, and Wan Xi Peng. "Py-GC-MS Analysis on Benzene-Alcohol Extractives of Phyllostachys pubescens for Biomedical Engineering." Key Engineering Materials 480-481 (June 2011): 211–14. http://dx.doi.org/10.4028/www.scientific.net/kem.480-481.211.

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In order to evaluate its potential biomedicines, the extractives of Phyllostachys pubescens were extracted and determined by Py-GC-MS. And the main constituents were 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a-octahydro-1,4a-dimethyl-7-(1-methylethyl)-(% 7.02), stigmast-5-en-3-ol, oleate(4.33%), 4,4,6a,6b,8a,11,11,14b-octamethyl-1,4,4a,5,6,6a,6b,7,8, 8a,9,10,11,12,12a,14,14a,14b-octadecahydro-2h-picen-3-one(3.39%), etc. So the benzene-alcohol extractives of Phyllostachys pubescens could be used for biomedical engineering.

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32

King, James Frederick, Gay Yuyitung, Manjinder Singh Gill, Jeffrey Charles Stewart, and Nicholas Charles Payne. "Stereoelectronic effects in sulfonyl compounds: axial orientation of an N-methyl group in a six-membered sultam." Canadian Journal of Chemistry 76, no. 2 (1998): 164–70. http://dx.doi.org/10.1139/v97-214.

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The trans form of octahydro-1-methyl-1H-2,1-benzothiazine 2,2-dioxide, in which a six-membered sultam unit is trans-fused to cyclohexane, has been synthesized. The single-crystal X-ray structure shows the molecule to have the N-methyl group in the axial orientation. The generalized anomeric effect believed to be responsible for the axial preference is estimated at =>2 kcal mol-1.Key words: generalized anomeric effect, negative hyperconjugation, sulfonamides, sultams, X-ray crystallography.

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33

Masnovi, Michelle E., Steven M. Schildcrout, and John Masnovi. "Structure and properties of 9,10,11,12,13,14-hexahydro-9,10[1′,4′]-benzenoanthracene and 9,10,11,12,13,14,15,16-octahydro-9,10[1′,4′]-benzenoanthracene." Journal of Molecular Structure 1079 (January 2015): 41–46. http://dx.doi.org/10.1016/j.molstruc.2014.09.010.

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34

Wu, Feng Juan, Wan Xi Peng, Zhong Feng Zhang, and Qing Zhi Ma. "Py-GC-MS Analysis on Extractives of Phyllostachys pubescens for Biomedical Engineering." Key Engineering Materials 480-481 (June 2011): 235–37. http://dx.doi.org/10.4028/www.scientific.net/kem.480-481.235.

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In order to evaluate its potential health risk to biomedical engineering, the extractives of Phyllostachys pubescens were adsorbed and determined by Py-GC-MS. And the main constituents were 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a-octahydro-1,4a-dimethyl-7 -(1-methylethyl)-(23.41%), benzofuran, 2,3-dihydro-(3.2%), cyclobutene(2.77%), 1-nonadecene (2.18%), isopropylcyclobutane(2.16%), stigmastan-3,5-diene(2.14%), benzene(2.03%), 1-hexadecene(1.99%), 1,3-butadiene, 2-methyl-(1.81%), glycerin(1.75%), 1-hexene(1.64%), phenol, 4-methyl-(1.55%), 2-methyl-1-butene(1.54%), toluene(1.47%), 1,

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35

Escobar, C., та O. Wittke. "Isodrimenin, (5aα,9aβ)-4,5,5a,6,7,8,9,9a-octahydro-6,6,9a-trimethylnaphtho[1,2-c]furan-1(3H)-one". Acta Crystallographica Section C Crystal Structure Communications 44, № 1 (1988): 154–56. http://dx.doi.org/10.1107/s0108270187008849.

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36

Aitken, R., and Karamat Ali. "Octahydro-1H,5H,7H-dipyrrolo[1,2-c:1′,2′-f][1,3,6]oxadiazocine-5-thione." Molbank 2018, no. 2 (2018): M993. http://dx.doi.org/10.3390/m993.

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37

Lowe, John A., Shari L. DeNinno, Susan E. Drozda, et al. "An octahydro-cyclopenta[c]pyrrole series of inhibitors of the type 1 glycine transporter." Bioorganic & Medicinal Chemistry Letters 20, no. 3 (2010): 907–11. http://dx.doi.org/10.1016/j.bmcl.2009.12.071.

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38

MEHTA, P., Y. KUMAR, A. K. SAXENA, A. K. GULATI, H. K. SINGH, and N. ANAND. "ChemInform Abstract: Synthesis of cis- and trans-1-Substituted 1,2,3,4,4a,5,11,11a- Octahydro-6H-pyrido(3,2-b)carbazoles, 4-Substituted 1,2,3,4,4a,5,6,11c- Octahydro-7H-pyrido(2,3-c)carbazoles, cis-4-Methyl-1,2,3,4,4a,5,6,12b- octahydro-7H-pyrido(2,3-c)ac." ChemInform 22, no. 30 (2010): no. http://dx.doi.org/10.1002/chin.199130200.

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39

Zeng, Qing, Demin Ren, Aiting Zheng, and Xiaofang Li. "Synthesis of Octahydropyrano[2,3-d]Pyrimidine Derivatives via Tetrahydropyrano[3,2-e][1,3]Thiazolo[3,2-a]Pyrimidine and 2,6-Dichlorobenzonitrile Oxide." Journal of Chemical Research 42, no. 6 (2018): 317–19. http://dx.doi.org/10.3184/174751918x15293130141511.

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N1-substituted octahydro-1 H-pyrano[2,3- d]pyrimidines derivatives were prepared in moderate yield by the reaction of methyl [(4a RS,5 SR,10a RS)-5-aryl-2-oxo-3,4,4 a,10 a-tetrahydro-2 H,5 H-pyrano[3,2- e][1,3]thiazolo[3,2- a]pyrimidin-8(9 H)-ylidene]acetate and 2,6-dichorobenzonitrile oxide via a domino 1,3-dipolar cycloaddition/ring-opening/dethionation process. The structures of the products were characterised by spectroscopic and X-ray crystallographic analysis.

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40

Bremner, JB, BM Eschler, BW Skelton, and AH White. "Photolysis of Vinylogous Chloroacetamides as a Route to Novel Bridged Heterocycles." Australian Journal of Chemistry 47, no. 10 (1994): 1935. http://dx.doi.org/10.1071/ch9941935.

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Photolysis of 1-( chloroacetyl )-8,9-dimethoxy-2,3,5,6-tetrahydropyrrolo[2,1-a] isoquinoline (4a) and 1-( chloroacetyl )-9,10-dimethoxy-3,4,6,7-tetrahydro-2H-benzo[a] quinolizine (4b) in acidified water/ acetonitrile each gave mixtures of two products: 10,11-dimethoxy-1,4,5,6,7,8-hexahydro-3,6-methano-2H-3-benzazecine-7,13-dione (5) plus crude 7,8-dimethoxy-1,2,4,5,9,10-hexahydrobenzo [de] pyrrolo [3,2,1-ij] isoquinoline-9,10-dione (6); and 12-hydroxy-11-methoxy- 1,2,4,5,6,7,8,9-octahydro-3,7-methano-3-benzazacycloundecine-8,14-dione (7) and 8,9-dimethoxy-2,3,5,6,10,11-hexahydro-1H-benzo[de] p

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41

Pabel, Jörg, Elmar Wadenstorfer, and Klaus T. Wanner. "Asymmetric Synthesis of Pyrido[1,2-c]pyrimidinones." Zeitschrift für Naturforschung B 64, no. 6 (2009): 653–61. http://dx.doi.org/10.1515/znb-2009-0610.

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“Asymmetric Electrophilic α-Amidoalkylation” reactions with a chiral alkylaminocarbonyl unit as chiral auxiliary are used for the stereoselective synthesis of 2-substituted piperidine derivatives. Intramolecular condensation of the nitrogen of the aminocarbonyl group with the keto function present in the newly introduced side chain of the amidoalkylation products results in the formation of hexahydropyrido[1,2-c]pyrimidinones. After reduction and removal of the N-alkyl moiety of the chiral auxiliary the target compounds, enantiopure octahydro-1H-pyrido[1,2-c]pyrimidin-1-ones, are obtained.

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42

Kooijman, Huub, and Anthony L. Spek. "(1E,3S,4aR,12aR)-3-Isopropenyl-8-methoxy-3,4,4a,5,6,11,12,12a-octahydro-1(2H)-chrysenone oxime." Acta Crystallographica Section E Structure Reports Online 59, no. 2 (2003): o121—o123. http://dx.doi.org/10.1107/s1600536802023693.

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43

Hussain, Zakir, Debasis Koley, and Henning Hopf. "Synthesis and Stereochemical Aspects of Ethyl 1,1a,2,3,4,5,6,6a-Octahydro-4-octylcyclopropa[f]indene-1-carboxylate." Helvetica Chimica Acta 88, no. 12 (2005): 3263–73. http://dx.doi.org/10.1002/hlca.200590262.

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44

Kameda, Mitsuaki, and Goji Kodama. "Reactions of trimethylphosphine-pentaboranes with trityl cation. Formation of octahydrobis(trimethylphosphine)pentaboron(1+) and octahydro(trimethylphosphine)pentaboron(1+) cations." Inorganic Chemistry 26, no. 12 (1987): 2011–12. http://dx.doi.org/10.1021/ic00259a042.

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45

Bauri, A. K., Sabine Foro, and Nhu Quynh Nguyen Do. "Crystal structure of a bioactive sesquiterpene isolated fromArtemisia reticulata." Acta Crystallographica Section E Crystallographic Communications 72, no. 4 (2016): 460–62. http://dx.doi.org/10.1107/s2056989016003236.

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The title compound, C15H24O2{systematic name: 1-[6-hydroxy-7-(propan-2-yl)-4-methylidene-2,3,3a,4,5,6,7,7a-octahydro-1H-inden-1-yl]ethanone} was isolated fromA. reticulataby column chromatography over silica gel by gradient solvent elution. The molecule comprises a bicyclo[4.3.0]nonane ring bearing acetoxy, hydroxy and isopropyl substituents, and an exocyclic double bond on the cyclohexane ring. In the bicyclic skeleton, the cyclohexane ring adopts a chair conformation ring and the cyclopentane ring is in an envelope conformation. In the crystal, molecules are linked by O—H...O hydrogen bonds,

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46

Chinthaparthi, Radha Rani, Chandra Sekhar Reddy Gangireddy, Veeranarayana Reddy Mudumala, Mohan Gundluru, Nagaraju Chamarthi, and Suresh Reddy Cirandur. "CeCl3·7H2O: a highly efficient catalyst for the synthesis of 1-substituted-octahydro-[1,3,2]diazaphospholo[1,5-a]pyridine-1-oxide." Tetrahedron Letters 54, no. 45 (2013): 6071–76. http://dx.doi.org/10.1016/j.tetlet.2013.08.115.

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47

Chapman, R. D., R. A. O'brien, and P. A. Kondracki. "N-denitration of octahydro-1, 3, 5, 7-tetranitro-1, 3, 5, 7-tetrazocine (HMX) by hydrazine catalyzed by palladium." Journal of Energetic Materials 16, no. 2-3 (1998): 147–71. http://dx.doi.org/10.1080/07370659808217510.

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48

Peng, Wan Xi, Lan Sheng Wang, Zhi Lin, and Zhen Zhen Zheng. "Py-GC-MS Analysis on Benzene-Alcohol Extractives of Eucalyptus urophydis Wood for Fine Indoor Environment." Applied Mechanics and Materials 178-181 (May 2012): 288–91. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.288.

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In order to evaluate the safety of Eucalyptus wood interior, Eucalyptus urophydis wood was used and extracted in benzene-alcohol solution, and its extractives were identified by Py-GC/MS. The main and abundant constituents of 350°С pyrolysis products were 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a-octahydro-1,4a-dimethyl-7-(1-methylethyl)-(5.38%), stigmasterol,22,23- dihydro- (4.67%), 3'-chlorooxanilic acid n'-(3-ethox y-4-hydroxybenzylidene)hydrazide (4.13%), stigmast-5-en-3-ol, oleate(3.83%), 2-ethylacridine(3.32%), etc. The main and abundant constituents of 600°Сpyrolysis products w

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49

Bunce, Richard A., and Christina R. Harris. "Ethyl (1R∗,3aS∗,7aS∗)-Octahydro-7a-methyl-7-oxo-1H-indene-1-acetate Using Tandem Reactions." Synthetic Communications 26, no. 10 (1996): 1969–75. http://dx.doi.org/10.1080/00397919608003551.

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50

Pohl, E., R. Herbst-Irmer, U. Groth, and P. Eckenberg. "rac-1,1,4-Trimethyl-5-trimethylsilyl-1,3,3a,4,6,7,8,9-octahydro-1-silanaphtho[1,2-c]furan at 153 K." Acta Crystallographica Section C Crystal Structure Communications 51, no. 5 (1995): 891–92. http://dx.doi.org/10.1107/s0108270194012576.

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