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Journal articles on the topic 'Cyclopropane 1,2,3-substitué'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Sun, Na-Bo, Guo-Wu Rao, and Jian-Bo Chu. "1-{[3-(2-Chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropan-1-yl]carbonyl}-3-(methylsulfonyl)imidazolidin-2-one." Acta Crystallographica Section E Structure Reports Online 68, no. 6 (2012): o1744. http://dx.doi.org/10.1107/s1600536812021216.

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In the title molecule, C13H16ClF3N2O4S, the imidazolidine ring is approximately planar, the largest deviation from this plane being 0.025 (3) Å. The cyclopropane ring forms a dihedral angle of 64.1 (2)° with the imidazolidine ring. In the crystal, C—H...O hydrogen bonds are observed.

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2

Mao, Hui, Ya-Wei Tu, Shi-Kun Li, Xiao-Juan Wang, and Peng-Peng Wang. "2-(2-Hydroxy-2-phenylethyl)-1-methylcyclopropan-1-ol." Acta Crystallographica Section E Structure Reports Online 69, no. 2 (2013): o189. http://dx.doi.org/10.1107/s1600536812051768.

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The asymmetric unit of the title compound, C12H16O2, contains two independent molecules in which the dihedral angles between the benzene and cyclopropane rings are 75.9 (3) and 76.3 (3)°. In the crystal, the molecules are connected by O—H...O hydrogen bonds into a three dimensional supramolecular structure.

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3

Altamore, Timothy M., Oanh T. K. Nguyen, Quentin I. Churches, et al. "Concise Synthesis of Enantiomerically Pure (1'S,2'R)- and (1'R,2'S)-2S-Amino-3-(2'-aminomethyl-cyclopropyl)propionic Acid: Two E-Diastereoisomers of 4,5-Methano-L-lysine." Australian Journal of Chemistry 66, no. 9 (2013): 1105. http://dx.doi.org/10.1071/ch13309.

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A concise synthesis of both E-isomers of 2S-amino-3-(2′-aminomethyl-cyclopropyl)propionic acid, new methano-l-lysines, is described. The synthetic route includes nine steps from l-methionine, with a key step involving the cyclopropanation of an intermediate E-allylic alcohol. The resultant hydroxymethylcyclopropanes were readily separated and converted into the title α-amino acids. The stereochemistry around the cyclopropane rings was deduced by conducting the cyclopropanation in the presence of N,N,N′,N′-tetramethyl-d-tartaric acid diamide butylboronate, a chiral controller which is known to

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4

Li, Xue-Mei, Lei Wang, Jian-Hua Xu, Shu-Sheng Zhang, and Hoong-Kun Fun. "Dispiro[cyclopropane-1,1′(2′H)-cyclobuta[b]naphthalene-2′,1′′-cyclopropane]-3′,8′-dione." Acta Crystallographica Section E Structure Reports Online 59, no. 11 (2003): o1742—o1744. http://dx.doi.org/10.1107/s1600536803022992.

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5

Chakkaravarthi, G., G. Periyasamy, R. Raghunathan, and V. Manivannan. "N′-(Diphenylmethylene)-3-(3-nitrophenyl)-1′,3′-dioxospiro[cyclopropane-2′-indan]-2-carbohydrazide." Acta Crystallographica Section E Structure Reports Online 63, no. 11 (2007): o4290. http://dx.doi.org/10.1107/s160053680704891x.

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In the title compound, C31H21N3O5, the indan ring system makes dihedral angles of 53.26 (6) with the nitrobenzene ring, and 66.50 (6) and 58.39 (7)° with the two phenyl rings. The crystal packing is stabilized by weak intermolecular N—H...O and C—H...O hydrogen bonds.

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6

Gemoets, J. P., M. Bravo, C. E. McKenna, G. J. Leigh, and B. E. Smith. "Reduction of cyclopropene by NifV- and wild-type nitrogenases from Klebsiella pneumoniae." Biochemical Journal 258, no. 2 (1989): 487–91. http://dx.doi.org/10.1042/bj2580487.

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The nitrogenase from wild-type Klebsiella pneumoniae reduces cyclopropene to cyclopropane and propene in the ratio 1:2 at pH 7.5. We show in this paper that the nitrogenase from a nifV mutant of K. pneumoniae also reduces cyclopropene to cyclopropane and propene, but the ratio of products is now 1:1.4. However, both nitrogenases exhibit the same Km for cyclopropene (2.1 x 10(4) +/- 0.2 x 10(4) Pa), considerably more than the Km for the analogous reaction with Azotobacter vinelandii nitrogenase under the same conditions (5.1 x 10(3) Pa). Analysis of the data shows that the different product rat

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7

Wang, Lizhong, Zhenjie Su, Siran Qian, Weijian Ye, and Cunde Wang. "Efficient Preparation of 2,3-Disubstituted Cyclopropane-1-Carbonitriles via Selective Decarboxylation of 1-Cyanocyclopropane-1-Carboxylates." Journal of Chemical Research 41, no. 11 (2017): 636–40. http://dx.doi.org/10.3184/174751917x15094552081161.

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2,3-Disubstituted cyclopropane-1-carbonitriles were efficiently formed via a selective decarboxylation reaction of substituted 2-aroyl-3-aryl-1-cyano-cyclopropane-1-carboxylates in up to 92% yield. The structures of three typical compounds were confirmed by X-ray crystallography.

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8

Boichenko, Maksim A., Alexey O. Chagarovskiy, Victor B. Rybakov, Igor V. Trushkov, and Olga A. Ivanova. "Dimethyl 2-{[2-(2-Methoxy-1-methoxycarbonyl-2-oxoethyl)-4,5,7-trimethoxy-3-(2,4,5-trimethoxyphenyl)-2,3-dihydro-1H-inden-1-yl]methyl}malonate." Molbank 2020, no. 1 (2020): M1107. http://dx.doi.org/10.3390/m1107.

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A simple synthetic approach to dimethyl 2-{[2-(2-methoxy-1-methoxycarbonyl-2-oxoethyl)-4,5,7-trimethoxy-3-(2,4,5-trimethoxyphenyl)-2,3-dihydro-1H-inden-1-yl]methyl}malonate has been developed, based on a B(C6F5)3-induced domino dimerization of 2-(2,4,5-trimethoxyphenyl)cyclopropane-1,1-diester.

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9

Rao, Guo-Wu, Xiao-Min Li, and Na-Bo Sun. "3-(2-Chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethyl-N-[3-(trifluoromethyl)phenyl]cyclopropanecarboxamide." Acta Crystallographica Section E Structure Reports Online 68, no. 6 (2012): o1743. http://dx.doi.org/10.1107/s1600536812020922.

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In the title molecule, C16H14ClF6NO, the cyclopropane ring forms a dihedral angle of 70.82 (18)° with the benzene ring. The torsion angles about the ethylene and amide bonds are −2.2 (5) (Cl—C—C—C) and 0.8 (5)° (O—C—N—C). A supramolecular chain propagated by glide symmetry along [001] and mediated by N—H...O hydrogen bonds is observed in the crystal packing.

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10

Kostyuchenko, I. V., E. V. Shulishov, V. A. Korolev, V. A. Dokichev, and Yu V. Tomilov. "Reduction of substituted spiro[cyclopropane-3-(1-pyrazolines)] to spiro[cyclopropane-3-pyrazolidines] and 1-(2-aminoethyl)cyclopropylamine derivatives." Russian Chemical Bulletin 54, no. 11 (2005): 2562–70. http://dx.doi.org/10.1007/s11172-006-0156-8.

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11

Srinivasan, Thothadri, Govindaraj Senthilkumar, Haridoss Manikandan, Mannathusamy Gopalakrishanan, and Devadasan Velmurugan. "1-Cyclopropyl-2-(2-fluorophenyl)-5-(4-fluorophenyl)-3-phenylpentane-1,5-dione." Acta Crystallographica Section E Structure Reports Online 69, no. 2 (2013): o215. http://dx.doi.org/10.1107/s1600536813000032.

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In the title compound, C26H22F2O2, the cyclopropane ring makes dihedral angles of 47.6 (2), 51.3 (2) and 63.9 (2)° with the 2-fluoro-substituted phenyl ring, the unsubstituted phenyl ring and the 4-fluoro-substituted phenyl ring, respectively. There is a short C—H...F contact in the molecule. In the crystal, weak C—H...F hydrogen bonds lead to chains of molecules extending along theb-axis direction.

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12

Liu, Dong-Qing, and Fan-Yong Yan. "(E)-N-(2-Bromophenyl)-3-(2-chloro-3,3,3-trifluoroprop-1-enyl)-2,2-dimethylcyclopropanecarboxamide." Acta Crystallographica Section E Structure Reports Online 63, no. 11 (2007): o4202. http://dx.doi.org/10.1107/s1600536807045916.

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In the title compound, C15H14BrClF3NO, the benzene and cyclopropane rings make a dihedral angle of 76.3 (3)°. The amide and methine H atoms are both linked to the amide O atom in an adjacent molecule by a pair of intermolecular hydrogen bonds, N—H...O...H—C, leading to the formation of chains along the b axis.

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13

Srinivasan, Thothadri, Govindaraj Senthilkumar, Haridoss Manikandan, Kaliaperumal Neelakandan, and Devadasan Velmurugan. "5-(4-Chlorophenyl)-1-cyclopropyl-2-(2-fluorophenyl)-3-phenylpentane-1,5-dione." Acta Crystallographica Section E Structure Reports Online 69, no. 2 (2013): o252. http://dx.doi.org/10.1107/s1600536813001074.

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In the title compound, C26H22ClFO2, the cyclopropane ring makes dihedral angles of 45.7 (2), 49.0 (2) and 65.2 (2)° with the fluoro-substituted phenyl ring, the benzene ring and the chloro-substituted phenyl ring, respectively. The F and Cl atoms deviate by 0.0307 (11) and 0.0652 (6) Å, respectively, from the planes of the phenyl rings to which they are attached. In the crystal, molecules are linked by C—H...F hydrogen bonds, forming chains along thebaxis.

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14

Liu, Dong-Qing, Ya-Qing Feng, Da-Wei Liu, and Sha-Sha Zhang. "3-[(E)-2-Chloro-3,3,3-trifluoroprop-1-enyl]-2,2-dimethyl-N-(3-pyridyl)cyclopropanecarboxamide acetone hemisolvate." Acta Crystallographica Section E Structure Reports Online 62, no. 5 (2006): o1747—o1748. http://dx.doi.org/10.1107/s1600536806012062.

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In the title compound, C14H14ClF3N2O·0.5C3H6O, the pyridine ring makes a dihedral angle of 73.0 (3)° with the cyclopropane ring. The amide NH group and the pyridine N atom are linked by an intermolecular N—H...N hydrogen bond.

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15

Suresh, J., M. Venkateshan, S. Ponnuchamy, R. Ranjith Kumar, and P. L. Nilantha Lakshman. "3-[2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-5-(4-methylsulfanylbenzylidene)-1,3-thiazolidine-2,4-dione." Acta Crystallographica Section E Structure Reports Online 69, no. 2 (2013): o188. http://dx.doi.org/10.1107/s1600536812051987.

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In the title compound, C22H18FNO3S2, the five-membered thiazolidine ring is planar (r.m.s. deviation = 0.003 Å) and forms dihedral angles of 70.2 (3), 73.16 (17) and 10.32 (14)° with the cyclopropane, fluorobenzene and methylthiobenzene rings, respectively. The sum of the bond angles around the thiazolidine ring N atom (359.6°) indicatessp2hybridization. The molecular structure features intramolecular C—H...S, C—H...F and C—H...O interactions. In the crystal, no significant intermolecular contacts were apparent.

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16

Ramnauth, Jailall, and Edward Lee-Ruff. "Photodecarbonylation of chiral cyclobutanones." Canadian Journal of Chemistry 75, no. 5 (1997): 518–22. http://dx.doi.org/10.1139/v97-060.

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Triplet photosensitized irradiation of 2(S),3(R)-bis[(benzoyloxy)methyl]cyclobutanone gave optically pure (−)E-1(S),2(S)-bis(benzoyloxymethyl)cyclopropane as a major product in the nonpolar fraction along with its stereoisomer and cycloelimination products. The absolute stereochemistry of the chiral cyclopropane was established by independent synthesis and X-ray crystal structure determination of a synthetic precursor. The distribution of decarbonylation and cycloelimination products was inversely dependent on the concentration of the substrate. Irradiation of the same ketone in tetrahydrofura

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17

Yan, Fan-Yong, and Dong-Qing Liu. "(E)-3-(2-Chloro-3,3,3-trifluoroprop-1-enyl)-N-(9,10-dioxo-9,10-dihydroanthracen-1-yl)-2,2-dimethylcyclopropanecarboxamide." Acta Crystallographica Section E Structure Reports Online 63, no. 11 (2007): o4201. http://dx.doi.org/10.1107/s160053680704408x.

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In the title compound, C23H17ClF3NO3, the dihedral angle between the dihydroanthracene and cyclopropane ring systems is 58.5 (4)°. The amino H atom forms an intramolecular hydrogen bond to a carbonyl O atom of the dioxodihydroanthracene moiety. The crystal packing is further stabilized by an intermolecular C—H...F contact.

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18

Lu, Zhi-Feng, Jian-Hua Xu, Jeannie Bee-Jan Teh, and Hoong-Kun Fun. "4,6-Bis{2′-hydroxy-2′,3′-dihydrospiro[cyclopropane-1,1′(1H)-inden]-3′-yl}isophthalonitrile." Acta Crystallographica Section E Structure Reports Online 63, no. 3 (2007): o1232—o1234. http://dx.doi.org/10.1107/s1600536807005004.

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In the title compound, C30H24N2O2, the central benzene ring forms dihedral angles of 84.3 (1) and 86.4 (1)° with the terminal benzene rings. The crystal structure is stabilized by O—H...O and C—H...π interactions.

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19

Torre-Fernández, Laura, Marcos G. Suero, and Santiago García-Granda. "(1RS,2RS,3RS)-1,2-Dimethoxy-3-methyl-2-phenyl-1-(2-thienyl)cyclopropane." Acta Crystallographica Section E Structure Reports Online 65, no. 4 (2009): o810. http://dx.doi.org/10.1107/s1600536809009441.

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20

Klimova, Elena I., Marcos Martı́nez Garcı́a, Tatiana Klimova, et al. "Regioselectivity of alkylation of the naphthalene fragment in the opening of a small ring in 3-ferrocenyl-3-(1-naphthyl)cyclopropene, Z-2-bromo-1-ferrocenyl-1-(1-naphthyl)cyclopropane, and 1-ferrocenyl-1-(1-naphthyl)cyclopropane." Journal of Organometallic Chemistry 566, no. 1-2 (1998): 175–85. http://dx.doi.org/10.1016/s0022-328x(98)00755-4.

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21

Strelow, Thomas, Jürgen Voss, and Werner Baum. "Electroreduction of Organic Compounds, 23 [1].Preparation of the Highly Strained 1′,3′-Dichlorodispiro[cyclopropane-1,2′-bicyclo[ 1.1.0lbutane-4′,1″-cyclopropane][2]." Zeitschrift für Naturforschung B 48, no. 9 (1993): 1288–90. http://dx.doi.org/10.1515/znb-1993-0919.

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The preparation of the title compound 4 by electrochemical reduction of 4,4,8,8-tetrachloro-dispiro[2.1.2.1]octane 3 is described. The geometry of the compounds is discussed in terms of quantum chemical calculations and spectroscopic results.

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22

Kim, Tae Ho, Ki-Min Park, Youngeun Jeon, and Jineun Kim. "Bioresmethrin: (5-benzylfuran-3-yl)methyl 2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropane-1-carboxylate." Acta Crystallographica Section E Structure Reports Online 68, no. 11 (2012): o3060. http://dx.doi.org/10.1107/s1600536812040767.

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23

Nünnecke, Dirk, Jürgen Voss, and Gunadi Adiwidjaja. "Electroreduction of Organic Compounds, 30. Cathodic Formation of 4,4,8-Trichlorodispiro[2.1.2.1] octane from 4,4,8,8-Tetrachlorodispiro[2.1.2.1] octane." Zeitschrift für Naturforschung B 52, no. 2 (1997): 259–62. http://dx.doi.org/10.1515/znb-1997-0221.

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Abstract The formation of the highly strained 1′ ,3′’-Dichlorodispiro[cyclopropane-1,2′-bicyclo[1.1.0]- butane-4′, 1″-cyclopropane] (2) by electrochemical reduction of the title compound 1, published by Strelow, Voss and Baum [2], turned out to be erroneous and has to be corrected. Instead of the formation of 2 a substitution of one chloro substituent by hydrogen takes place and the trichlorodispiro[2.1.2.1]octane 3 results. The structure of 3 is confirmed by an X-ray structural analysis.

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24

Puranik, V. G., S. S. Tavale, and T. N. Guru Row. "Structure of methyl 3-hydroxy-3',3'-dimethylspiro[1,2-benzo-1-cyclohexene-4,1'-cyclopropane]-2'-carboxylate." Acta Crystallographica Section C Crystal Structure Communications 46, no. 2 (1990): 329–31. http://dx.doi.org/10.1107/s0108270189010048.

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25

Wanapun, D., K. A. Van Gorp, N. J. Mosey, M. A. Kerr, and T. K. Woo. "The mechanism of 1,3-dipolar cycloaddition reactions of cyclopropanes and nitrones A theoretical study." Canadian Journal of Chemistry 83, no. 10 (2005): 1752–67. http://dx.doi.org/10.1139/v05-182.

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The 1,3-dipolar cycloaddition reaction of cyclopropanes and nitrones to give tetrahydro-1,2-oxazine has been studied with density functional theory calculations at the B3LYP/6-31+G(d,p) level of theory. Realistic substituents were modelled including those at the 2-, 3-, 4-, and 6-positions of the final oxazine ring product. The strained σ bond of the cyclopropane was found to play the role of an alkene in a conventional [3+2] dipolar cycloaddition. Two distinct, but similar, reaction mechanisms were found an asymmetric concerted pathway and a stepwise zwitterionic pathway. The reaction barri

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26

Ahmed, Muhammad Naeem, Khawaja Ansar Yasin, M. Nawaz Tahir, Asma Bibi, and Hina Andleeb. "Ethyl 6-(4-cyclopropyl-1H-1,2,3-triazol-1-yl)pyridine-3-carboxylate." Acta Crystallographica Section E Structure Reports Online 70, no. 2 (2014): o136. http://dx.doi.org/10.1107/s1600536813034673.

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In the title compound, C13H14N4O2, which has approximate mirror symmetry, the dihedral angles between the triazole ring and the cyclopropane and pyridine rings are 87.1 (2) and 7.60 (9)°, respectively. In the crystal, inversion dimers linked by pairs of both C—H...N and C—H...O interactions generateR22(6) andR22(18) loops, respectively. Further C—H...N interactions formR22(10) loops and link the dimers into [110] chains.

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27

Besidsky, Yevgeny, Kristina Luthman, and Uli Hacksell. "3′-Keto-1-nitro-2-phenylspiro[cyclopropane-3,2′-quinuclidine]: Synthesis and reactions with nucleophiles." Journal of Heterocyclic Chemistry 31, no. 6 (1994): 1321–26. http://dx.doi.org/10.1002/jhet.5570310604.

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28

Pohmakotr, Manat, and Auntika Takampon. "Destannylative acylation of 1-[(2-methoxyethoxy)methoxy]-2-(phenylsulfonyl)-2-(tributylstannyl)cyclopropane: A novel route to 3-acylfurans." Tetrahedron Letters 37, no. 26 (1996): 4585–88. http://dx.doi.org/10.1016/0040-4039(96)00852-0.

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29

You, Changming, and Changqing Wang. "Crystal structure of 2-benzoyl-3-(4-methoxyphenyl)cyclopropane-1,1-dicarbonitrile, C19H14N2O2." Zeitschrift für Kristallographie - New Crystal Structures 232, no. 6 (2017): 897–98. http://dx.doi.org/10.1515/ncrs-2017-0052.

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30

Yanping, Yi. "Crystal structure of 2-benzoyl-3-(3,4-dichlorophenyl)cyclopropane-1,1- dicarbonitrile, C18H10Cl2N2O." Zeitschrift für Kristallographie - New Crystal Structures 230, no. 2 (2015): 65–66. http://dx.doi.org/10.1515/ncrs-2014-9063.

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Abstract C18H10Cl2N2O, triclinic, P1̄ (no. 2), a = 6.8195(5) Å, b = 9.6727(8) Å, c = 13.268(1) Å, α = 98.491(2)°, β = 100.571(2)°, γ = 107.434(2)°, V = 801.4 Å3, Z = 2, Rgt(F) = 0.0436, wRref(F2) = 0.1224, T = 296 K.

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31

Novikov, Roman A., and Yury V. Tomilov. "Dimerization of Dimethyl 2-(Naphthalen-1-yl)cyclopropane-1,1-dicarboxylate in the Presence of GaCl3to [3+2], [3+3], [3+4], and Spiroannulation Products." Helvetica Chimica Acta 96, no. 11 (2013): 2068–80. http://dx.doi.org/10.1002/hlca.201200636.

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32

Li, Jian, Shangrong Zhu, Qiuneng Xu, Li Liu, and Shenghu Yan. "Brønsted acid mediated intramolecular cyclopropane ring expansion/[4 + 2]-cycloaddition." Organic & Biomolecular Chemistry 17, no. 47 (2019): 10004–8. http://dx.doi.org/10.1039/c9ob02379h.

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A cascade reaction of 3-hydroxy-2-phenylisoindolin-1-one and cyclopropyl ketone has been developed via BrØnsted acid-promoted ring-opening/intramolecular cross-cycloaddition/[4 + 2]-cycloaddition process.

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33

Masters, Andrew P., та Ted S. Sorensen. "The preparation and reactions of ω-bromoacylmanganese pentacarbonyls". Canadian Journal of Chemistry 68, № 3 (1990): 502–6. http://dx.doi.org/10.1139/v90-077.

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The reaction of ω-bromoacyl chlorides Br—CH2—(CH2)n—COCl and Mn(CO)5− is reported. In the case of n = 0, one obtains ketene, Mn(CO)5Br, and chloride ion. In contrast, the corresponding chloro compound gives the known chloroacyl manganese complex. With n = 1, 2, or 3, one can isolate the corresponding ω-bromoacylmanganese complexes. On mild heating, the n = 1 complex produces only ethylene and Mn(CO)5Br. The n = 2 and 3 complexes are also relatively labile on heating in THF solution and produce the 1-alkene as the major organic product. In chloroform solution, the corresponding ω-bromoalkyl com

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34

Li, Wei, Yanli Zeng, Xiaoyan Li, Zheng Sun та Lingpeng Meng. "Insight into the pseudo π-hole interactions in the M3H6⋯(NCF)n (M = C, Si, Ge, Sn, Pb; n = 1, 2, 3) complexes". Physical Chemistry Chemical Physics 18, № 35 (2016): 24672–80. http://dx.doi.org/10.1039/c6cp03713e.

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For cyclopropane and its derivatives M<sub>3</sub>H<sub>6</sub> (M = C, Si, Ge, Sn, Pb), “pseudo π-hole” regions above and below the M–M–M three-membered ring have been discovered, and pseudo π-hole interactions between M<sub>3</sub>H<sub>6</sub> and F–CN have been designed and investigated.

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35

Zlokazov, M. V., and V. V. Veselovsky. "Unusual transformation of (1R,1′S,2S)-1-(3-diisopropylamino-3-oxopropyl)-2-(1-hydroxyethyl)cyclopropane in the course of the cyclopropylcarbinyl rearrangement." Russian Chemical Bulletin 58, no. 2 (2009): 322–26. http://dx.doi.org/10.1007/s11172-010-0010-x.

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36

Sathishkannan, Gopal, and Kannupal Srinivasan. "Lewis Acid-Mediated Transformations oftrans-2-Aroyl-3-aryl- cyclopropane-1,1-dicarboxylates into 2-Pyrones and 1-Indanones." Advanced Synthesis & Catalysis 356, no. 4 (2014): 729–35. http://dx.doi.org/10.1002/adsc.201300861.

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37

POHMAKOTR, M., and A. TAKAMPON. "ChemInform Abstract: Destannylative Acylation of 1-((2-Methoxyethoxy)methoxy)-2-( phenylsulfonyl)-2-(tributylstannyl)cyclopropane: A Novel Route to 3- Acylfurans." ChemInform 27, no. 39 (2010): no. http://dx.doi.org/10.1002/chin.199639138.

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38

Hara, Koji, Edmond I. Eger, Michael J. Laster, and R. Adron Harris. "Nonhalogenated Alkanes Cyclopropane and Butane Affect Neurotransmitter-gated Ion Channel and G-protein–coupled Receptors." Anesthesiology 97, no. 6 (2002): 1512–20. http://dx.doi.org/10.1097/00000542-200212000-00025.

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Background Anesthetic mechanisms of nonhalogenated alkanes cyclopropane and butane are not understood. This study was designed to look at which neurotransmitter receptors are possible targets for these anesthetics. Methods Effects of cyclopropane and butane on eight recombinant receptors expressed in Xenopus oocytes were examined electrophysiologically. To address molecular mechanisms of interaction with glycine and gamma-aminobutyric acid type A (GABA(A)) receptors, cyclopropane was further tested on alpha1(S267C) glycine receptor and alpha2(S270X)beta1 GABA(A) receptors that were mutated to

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Yang, Hojin, Tae Ho Kim, Ki-Min Park, and Jineun Kim. "Acrinathrin: (S)-cyano(3-phenoxyphenyl)methyl (Z)-(1R,3S)-2,2-dimethyl-3-{2-[2,2,2-trifluoro-1-(trifluoromethyl)ethoxycarbonyl]vinyl}cyclopropane-1-carboxylate." Acta Crystallographica Section E Structure Reports Online 67, no. 5 (2011): o1275. http://dx.doi.org/10.1107/s1600536811014760.

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Kurek-Tyrlik, Alicja, Kazimierz Minksztym, and Jerzy Wicha. "Towards Synthesis of Calysterols, Marine Sterols with Cyclopropene Moiety in the Side Chain: Synthesis of 26,27-Dinor-23H-isocalysterol." Collection of Czechoslovak Chemical Communications 63, no. 10 (1998): 1575–88. http://dx.doi.org/10.1135/cccc19981575.

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26,27-Dinor-23H-isocalysterol 24 has been synthesized in 19% yield (6 steps) from ethyl 6β-methoxy-3α,5-cyclo-5α-pregnan-21-oate (18). For construction of the side chain, alkylation of lithium salt of ester 18 with 1-bromo-1,2-dimethyl-c-3-iodomethyl-c-2-(trimethylsilyl)cyclopropane 16 was used. It has been shown that reduction of the ester group in position 21 and rearrangement of the 3,5-cyclosteroid system are compatible with the sidechain functionalities. It has been found that methylation of 1,1-dibromo-2-(trimethylsilyl)cyclopropane is accompanied by an rearrangement involving 1,2-migrat

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Rao, A. Bhaskar, H. Rehman, B. Krishnakumari, and J. S. Yadav. "Lipase catalysed kinetic resolution of racemic (±)2,2-dimethyl-3-(2-methyl-1-propenyl)-cyclopropane carboxyl esters+." Tetrahedron Letters 35, no. 16 (1994): 2611–14. http://dx.doi.org/10.1016/s0040-4039(00)77186-3.

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BESIDSKY, Y., K. LUTHMAN, and U. HACKSELL. "ChemInform Abstract: 3′-Keto-1-nitro-2-phenylspiro(cyclopropane-3,2′-quinuclidine): Synthesis and Reactions with Nucleophiles." ChemInform 26, no. 22 (2010): no. http://dx.doi.org/10.1002/chin.199522180.

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Carson, Philip A., and Paul de Mayo. "Surface photochemistry: Semiconductor mediated reactions of some 1,2-diarylcyclopropanes." Canadian Journal of Chemistry 65, no. 5 (1987): 976–79. http://dx.doi.org/10.1139/v87-166.

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1,2-Diphenylcyclopropane (1) was found to be oxidized on illuminated ZnO in the presence of air while 1-(p-methoxyphenyl)-2-phenylcyclopropane (2) and 1,2-bis(p-methoxyphenyl)cyclopropane (3) were found to be similarly oxidized on illuminated CdS. Compounds 2 and 3 were found, also, to undergo a rapid photochemical cis-trans isomerization on CdS whereas 1 did not undergo such isomerization. An electron transfer mechanism involving formation of the radical cations of the substrates is proposed.

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Li, Tong, Anne Buyle Padias, and H. K. Hall. "Cyclopropane initiators. 3. Cationic polymerization of N-vinylcarbazole initiated by ethyl 1-cyano-2-(p-methoxyphenyl)cyclopropanecarboxylate." Macromolecules 25, no. 5 (1992): 1387–90. http://dx.doi.org/10.1021/ma00031a004.

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Shaabanzadeh, Masoud, and Faranak Khabari. "One-pot synthesis of new spiro[cyclopropane-1,3′-[3H]indol]-2′(1′H)-ones from 3-phenacylideneoxindoles." Journal of Heterocyclic Chemistry 47, no. 4 (2010): 949–53. http://dx.doi.org/10.1002/jhet.394.

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Kassam, Karim, Paul C. Venneri, and John Warkentin. "Reactions of alkoxyaryloxycarbenes with tethered triple bonds: a new synthesis of substituted benzofurans." Canadian Journal of Chemistry 75, no. 9 (1997): 1256–63. http://dx.doi.org/10.1139/v97-152.

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Cyclic 3-alkoxy-3-aryloxyvinylcarbenes can be generated by a highly exo-selective intramolecular cyclization of a dioxycarbene onto a tethered triple bond. Like their dialkoxy counterparts, the 3-alkoxy-3-aryloxyvinylcarbene intermediates are capable of interesting reactions. In contrast to 3,3-dialkoxyvinylcarbenes, which undergo a formal [3 + 2] cycloaddition with highly electron-deficient olefins such as benzylidenemalononitrile, 3-alkoxy-3-aryloxyvinylcarbenes undergo a highly diastereoselective [1 + 2] cycloaddition with benzylidenemalononitrile to give cyclopropylketene acetals. At high

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Xiao, Hong-Xiu, Qing-Xiang Yan, Zhi-Hui He, et al. "Total Synthesis and Anti-Inflammatory Bioactivity of (−)-Majusculoic Acid and Its Derivatives." Marine Drugs 19, no. 6 (2021): 288. http://dx.doi.org/10.3390/md19060288.

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The first total synthesis of marine natural product, (−)-majusculoic acid (1) and its seven analogs (9–15), was accomplished in three to ten steps with a yield of 3% to 28%. The strategy featured the application of the conformational controlled establishment of the trans-cyclopropane and stereochemical controlled bromo-olefination or olefination by Horner–Wadsworth–Emmons (HWE) reaction. The potential anti-inflammatory activity of the eight compounds (1 and 9–15) was evaluated by determining the nitric oxide (NO) production in the lipopolysaccharide (LPS)-induced mouse macrophages RAW264.7. (−

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Hartmann, S., D. E. Minnikin, H. J. Römming, M. S. Baird, C. Ratledge, and P. R. Wheeler. "Synthesis of methyl 3-(2-octadecylcyclopropen-1-yl)propanoate and methyl 3-(2-octadecylcyclopropen-1-yl)pentanoate and cyclopropane fatty acids as possible inhibitors of mycolic acid biosynthesis." Chemistry and Physics of Lipids 71, no. 1 (1994): 99–108. http://dx.doi.org/10.1016/0009-3084(94)02315-8.

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Sathishkannan, Gopal, and Kannupal Srinivasan. "ChemInform Abstract: Lewis Acid-Mediated Transformations of trans-2-Aroyl-3-aryl-cyclopropane-1,1-dicarboxylates into 2-Pyrones and 1-Indanones." ChemInform 45, no. 35 (2014): no. http://dx.doi.org/10.1002/chin.201435156.

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Zou, Wenli, and Dieter Cremer. "Description of Bond Pseudorotation, Bond Pseudolibration, and Ring Pseudoinversion Processes Caused by the Pseudo-Jahn–Teller Effect: Fluoro Derivatives of the Cyclopropane Radical Cation." Australian Journal of Chemistry 67, no. 3 (2014): 435. http://dx.doi.org/10.1071/ch13480.

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Curvilinear coordinates are used to describe the molecular geometry and the pseudo-Jahn–Teller surface of F-substituted cyclopropane radical cations using the equation-of-motion coupled cluster EOMIP-CCSD/cc-pVTZ approach. The monofluoro derivative 2 undergoes bond pseudolibration (incomplete bond pseudorotation) between two symmetry-equivalent biradicaloid forms separated by a barrier of 2.2 kcal mol–1 (1 kcal mol–1 = 4.186 kJ mol–1) at low temperature. Bond pseudorotation and ring pseudoinversion have barriers of 12.1 and 16.5 kcal mol–1 respectively. The relative energies of 2 are affected

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