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Journal articles on the topic 'Substituted formamides'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Schönewerk, Jens, and Horst Hartmann. "On the Formation and 1H NMR-spectroscopic Characterization of N,N-Diaryl-substituted Formamide Chlorides." Zeitschrift für Naturforschung B 67, no. 4 (2012): 277–84. http://dx.doi.org/10.1515/znb-2012-0401.

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The reaction of N,N-diaryl-substituted formamides with oxalyl chloride gives rise, instead to the formation of the expected salt-like formamide chlorides, to the formation of corresponding non-ionic N-dichloromethyl-substituted diarylamines.

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2

Nath, Dilip Chandra Deb, Christopher M. Fellows, Toshiaki Kobayashi, and Teruyuki Hayashi. "Hydroamidation of Alkenes with N-Substituted Formamides." Australian Journal of Chemistry 59, no. 3 (2006): 218. http://dx.doi.org/10.1071/ch06010.

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Hydroamidation of olefins with N-substituted formamides is performed with dodecacarbonyltriruthenium (Ru3(CO)12) at 180°C under N2 or CO atmosphere in toluene and in a series of ionic liquids. Yields of 99% with 94–97% exo selectivity are found in the addition of N-methylformamide to 2-norbornene under CO both in toluene and in the ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [bmim][NTf2]. The presence of CO or a phosphine is necessary for significant reaction to occur, with CO more effective than triphenylphosphine in all ionic liquids investigated. Reasonable yi

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3

Gao, Lingfeng, Haoming Tang, and Zhiyong Wang. "Oxidative coupling of methylamine with an aminyl radical: direct amidation catalyzed by I2/TBHP with HCl." Chem. Commun. 50, no. 31 (2014): 4085–88. http://dx.doi.org/10.1039/c4cc00621f.

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4

Liu, Defu, Jincheng Mao, Guangwei Rong, Hong Yan, Yang Zheng, and Jie Chen. "Concise synthesis of semicarbazides and formylhydrazines via direct addition reaction between aromatic azoarenes and N-substituted formamides." RSC Advances 5, no. 25 (2015): 19301–5. http://dx.doi.org/10.1039/c4ra17015f.

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5

M., UMAR ALl, M. MESHRAM H., and G. PARANJPE M. "Raney Nickel Desulphuration of 1-Substituted- and 1,3-Disubstituted-thioureas." Journal of Indian Chemical Society Vol. 62, Sep 1985 (1985): 666–69. https://doi.org/10.5281/zenodo.6322632.

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Department of Chemistry, Nagpur University, Nagpur-140 010 Manuscript <em>received 16 May 1984, revised 13 May 1985, accepted 11 September 1985</em> Certain 1-aryl-1,3 diaryl- and 1-aryl-3-tetra-<em>O</em>-acetyl-<em>β</em>-D-glucopyranosyl thioureas have been successfully desulphurated into the related mono- and 1,3-di-substituted formamidines with the help of Raney nickel catalyst. A few of them have been converted into the corresponding formamides also. Structure of the products have been established through usual chemical transformations, ir, nmr and mass spectral analysis.

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6

Tieppo, N., P. Redondo, F. Pauzat, O. Parisel, J. C. Guillemin, and Y. Ellinger. "Building formamide and N-substituted formamides from isocyanates on hydrogenated water ices." Astronomy & Astrophysics 695 (March 2025): A133. https://doi.org/10.1051/0004-6361/202450614.

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Context. Many complex organic molecules (COMs) observed in the interstellar medium (ISM) are probably not formed in the gas phase. A large consensus has developed that it could be related to the icy surfaces in this environment. Aims. We investigate the process of building N-substituted formamides in the ISM by successive additions of atomic hydrogen to isocyanates. The key point is to see whether the pre-adsorption of the atomic hydrogen on the ice surface is a driving vector as it is for the formation of CH3OH from CO. Methods. We use quantum numerical simulations, namely density functional

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7

Gupta, Shyam Sunder R., Akhil V. Nakhate, Kalidas B. Rasal, Gunjan P. Deshmukh, and Lakshmi Kantam Mannepalli. "Oxidative amidation of benzaldehydes and benzylamines withN-substituted formamides over a Co/Al hydrotalcite-derived catalyst." New Journal of Chemistry 41, no. 24 (2017): 15268–76. http://dx.doi.org/10.1039/c7nj03123h.

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8

Comins, Daniel L. "Synthesis of MAPA Reagents and 2-Alkyl(aryl)aminopyridines from 2-Bromopyridine Using the Goldberg Reaction." Molecules 27, no. 6 (2022): 1833. http://dx.doi.org/10.3390/molecules27061833.

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A short and economical synthesis of various 2-methylaminopyidine amides (MAPA) from 2-bromopyridine has been developed using the catalytic Goldberg reaction. The effective catalyst was formed in situ by the reaction of CuI and 1,10-phenanthroline in a 1/1 ratio with a final loading of 0.5–3 mol%. The process affords high yields and can accommodate multigram-scale reactions. A modification of this method provides a new preparation of 2-N-substituted aminopyridines from various secondary N-alkyl(aryl)formamides and 2-bromopyridine. The intermediate aminopyridine formamide is cleaved in situ thro

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9

Zhou, Zhou, Jin-Tao Yu, Yongnan Zhou, Yan Jiang, and Jiang Cheng. "Aqueous MCRs of quaternary ammoniums, N-substituted formamides and sodium disulfide towards aryl thioamides." Organic Chemistry Frontiers 4, no. 3 (2017): 413–16. http://dx.doi.org/10.1039/c6qo00670a.

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A three-component reaction of quaternary ammonium salts, N-substituted formamides and aqueous sodium disulfide was developed, leading to aryl/heteroaryl thioamides in moderate to good yields with good functional group compatibility.

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10

Vohra, Rahul, та David B. Maclean. "Enamines from formamides. Synthesis of 1,2,3,4-tetrahydro-1-substituted β-carbolines". Canadian Journal of Chemistry 72, № 7 (1994): 1660–67. http://dx.doi.org/10.1139/v94-209.

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Pyridines and benzopyridines substituted with trimethylsilylmethyl groups, α or γ to the nitrogen atom, have been found to react with formamides by way of a Peterson reaction to form enamines. Trimethylsilylmethylbenzene behaved similarly. The enamines prepared from Nb-formyl-Na,Nb-dimethyltryptamine cyclized readily to β-carbolines. The reaction of formamides with lithiated 4-methylpyridines as a route to enamines was examined but proved to be less general and proceeded in lower yield than the route by way of the Peterson reaction. The nuclear magnetic resonance and mass spectra of the enamin

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11

Salami, Sodeeq Aderotimi, Xavier Siwe-Noundou, and Rui Werner Maçedo Krause. "A More Sustainable Isocyanide Synthesis from N-Substituted Formamides Using Phosphorus Oxychloride in the Presence of Triethylamine as Solvent." Molecules 27, no. 20 (2022): 6850. http://dx.doi.org/10.3390/molecules27206850.

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A simple, green, and highly efficient protocol for the synthesis of isocyanides is described. The reaction involves dehydration of formamides with phosphorus oxychloride in the presence of triethylamine as solvent at 0 °C. The product isocyanides were obtained in high to excellent yields in less than 5 min. The method offers several advantages including increased synthesis speed, relatively mild conditions, and rapid access to large numbers of functionalized isocyanides, excellent purity, increased safety, and minimal reaction waste. The new approach of synthesising dehydrative isocyanides fro

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12

D.V.R. Vasupavani and Sudhakar Chintakula. "COPPER OXIDE CATALYZED AMIDES FROM OXIDATIVE AMIDATION OF BENZYL AMINE, STYRENE, AND PHENYL ACETIC ACIDS WITH DMF AS AMINE SOURCE." RASAYAN Journal of Chemistry 18, no. 03 (2025): 1581–89. https://doi.org/10.31788/rjc.2025.1839265.

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Hydrothermal-assisted Copper oxide (CuO) nanocatalyst, which is found to be an efficient heterogeneous catalyst for the synthesis of amides through oxidative amidation of benzyl amine, styrene, and phenyl acetic acid with DMF as an amine source, respectively. The prepared CuO was further investigated using XRD, FTIR, and TEM which resulting monoclinic structure with a 27 nm was formed without impurities. Various substituted benzyl amines, styrenes, phenyl acetic acids, and formamides are well amidation and afforded the various N, N-substituted benzamides in moderate to good yields. The synthes

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13

Thimmegowda, Naraganahalli R., Kanchugarakoppal S. Rangappa, Gullahalli S. Jagadeesha, and Kempegowda Mantelingu. "Microwave-Assisted, Metal-Free, Chemoselective N-Formylation of Amines using 2-Formyl-3-methyl-1H-imidazol-3-ium Iodide and In Situ Synthesis of Benzimidazole and Isocyanides." SynOpen 06, no. 02 (2022): 132–40. http://dx.doi.org/10.1055/s-0041-1737605.

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AbstractAn efficient, environmentally benign, chemoselective, microwave-assisted N-formylation protocol of aromatic, aliphatic, alicyclic, benzylic amines, inactivated aromatic amines and sterically demanding heterocyclic amines using 2-formyl-1,3-dimethyl-1H-imidazol-3-ium iodide has been developed. This affords a series of N-substituted formamides with good to excellent yields (23 examples, 53–96% yield) and can be readily scaled. The methodology can be further extended to synthesize benzimidazole and isocyanide derivatives.

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14

W., K. Su, and R. Liang X. "An efficient and convenient route to some isoselenocyanates via reaction of formam ides with bis(trichloromethyl)carbonate and selenium." Journal of Indian Chemical Society Vol. 80, Jun 2003 (2003): 645–47. https://doi.org/10.5281/zenodo.5839888.

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College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China <em>E-mail</em> : suweike@zjut.edu.cn    Fax : 86-571-88320420 <em>Manuscript received 14 May 2002. revised 7 January 2003. accepted 14 January 2003</em> A class of isoselenocyanatcs was synthesized via one-pot procedure of <em>N-</em>substituted formamides,with selenium and bis(trichloromethyl)carbonate in the presence of triethylamine in good yields.

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15

Luo, Qun-Li, Xia Wang, and Qing-Gang Wang. "Synthesis of Isonitriles from N-Substituted Formamides Using Triphenylphosphine and Iodine." Synthesis 47, no. 01 (2014): 49–54. http://dx.doi.org/10.1055/s-0034-1379111.

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16

Bi, Xiaojing, Junchen Li, Enxue Shi, Hongmei Wang, Runli Gao, and Junhua Xiao. "Ru-catalyzed direct amidation of carboxylic acids with N-substituted formamides." Tetrahedron 72, no. 50 (2016): 8210–14. http://dx.doi.org/10.1016/j.tet.2016.10.043.

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17

Chen, Zhiyong, Yiming Cao, Zeyu Tian, et al. "An efficient reduction of N -substituted carbonylimidazolides into formamides by NaBH 4." Tetrahedron Letters 58, no. 22 (2017): 2166–70. http://dx.doi.org/10.1016/j.tetlet.2017.04.072.

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18

Kotachi, Shinji, Yasushi Tsuji, Teruyuki Kondo, and Yoshihisa Watanabe. "Ruthenium catalysed N,N′-diarylurea synthesis from N-aryl substituted formamides and aminoarenes." J. Chem. Soc., Chem. Commun., no. 7 (1990): 549–50. http://dx.doi.org/10.1039/c39900000549.

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19

Kitano, Yoshikazu, Genki Kobayashi, and Tateo Saito. "A Novel Method for Preparing Isocyanides from N-Substituted Formamides with Chlorophosphate Compounds." Synthesis 2011, no. 20 (2011): 3225–34. http://dx.doi.org/10.1055/s-0030-1260211.

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20

Xu, Kun, Yanbin Hu, Sheng Zhang, Zhenggen Zha, and Zhiyong Wang. "Direct Amidation of Alcohols with N-Substituted Formamides under Transition-Metal-Free Conditions." Chemistry - A European Journal 18, no. 32 (2012): 9793–97. http://dx.doi.org/10.1002/chem.201201203.

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21

Wang, Xia, Qing-Gang Wang, and Qun-Li Luo. "ChemInform Abstract: Synthesis of Isonitriles from N-Substituted Formamides Using Triphenylphosphine and Iodine." ChemInform 46, no. 23 (2015): no. http://dx.doi.org/10.1002/chin.201523082.

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22

VOHRA, R., та D. B. MACLEAN. "ChemInform Abstract: Enamines from Formamides. Synthesis of 1,2,3,4-Tetrahydro-1- substituted β-Carbolines." ChemInform 26, № 8 (2010): no. http://dx.doi.org/10.1002/chin.199508197.

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23

Prakash, Patil, Pawar Bharat, Dhivare Ravindra, and Mirgane Sunil. "NICKEL ALUMINATE (NiAl2O4): AN EFFICIENT CATALYST FOR ORGANIC TRANSFORMATIONS." Review Of Research 8, no. 1 (2018): 1–6. https://doi.org/10.5281/zenodo.3922902.

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<strong>ABSTRACT</strong> Nano-sized crystal materials of <strong>NiAl<sub>2</sub>O<sub>4</sub></strong> metallic doped catalyst has been productively created by sol-gel combustion manner with the proper proportions of glycine supported nickel nitrate, alumnium nitrate and heated under the highest temperature on 900ºC performed into the muffle furnace. The structural, morphological, and spectral properties have been examined by using FT-IR, EDS, and FESEM study exposed to the formation of crystalline <strong>NiAl<sub>2</sub>O<sub>4</sub></strong> Nano-particles. This afforded metals catal

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24

Härling, Stephan, Julia Greiser, Tareq M. A. Al-Shboul, Helmar Görls, Sven Krieck, and Matthias Westerhausen. "Calcium-mediated Hydrophosphorylation of Organic Isocyanates with Diphenylphosphane Oxide." Australian Journal of Chemistry 66, no. 10 (2013): 1264. http://dx.doi.org/10.1071/ch13259.

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The calcium-mediated addition of diphenylphosphane oxide to organic isocyanates and isothiocyanates yields N-alkyl and N-aryl substituted diphenylphosphorylformamides (E = O, R = iPr, tBu, cHex, Ph, C6H4-4-Br, C6H2-2,4,6-Me3, and Naph) and -thioformamides (E = S, R = iPr, cHex, Ph, and C6H4-4-Me), respectively, of the type Ph2P(O)–C(E)–N(H)R. All derivatives were characterized by IR and NMR spectroscopy as well as X-ray diffraction experiments. The wavenumbers of the N–H stretching modes are smaller for the thio analogues and N-aryl substituents. In the solid state all formamides and thioforma

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25

Yang, Yuan, Hui Huang, Lijun Wu, and Yun liang. "Palladium-catalyzed annulation of benzynes with N-substituted-N-(2-halophenyl)formamides: synthesis of phenanthridinones." Organic & Biomolecular Chemistry 12, no. 29 (2014): 5351. http://dx.doi.org/10.1039/c4ob00997e.

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26

Patkar, Gauravkumar S., Varsha S. Zade, and Gajanan V. Korpe. "ChemInform Abstract: Versatile Synthesis of N-Substituted Lactopyranosil Formamides by Desulfurization of the Corresponding Thiocarbamides." ChemInform 46, no. 42 (2015): no. http://dx.doi.org/10.1002/chin.201542204.

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27

Kobayashi, Genki, Tateo Saito, and Yoshikazu Kitano. "ChemInform Abstract: A Novel Method for Preparing Isocyanides from N-Substituted Formamides with Chlorophosphate Compounds." ChemInform 43, no. 6 (2012): no. http://dx.doi.org/10.1002/chin.201206063.

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28

Xu, Kun, Yanbin Hu, Sheng Zhang, Zhenggen Zha, and Zhiyong Wang. "ChemInform Abstract: Direct Amidation of Alcohols with N-Substituted Formamides under Transition-Metal-Free Conditions." ChemInform 44, no. 1 (2013): no. http://dx.doi.org/10.1002/chin.201301071.

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29

Jończyk, Andrzej, and Krzysztof Michalski. "A New Reaction of N-substituted Formamides with Trichloroethylene under Conditions of Phase-Transfer Catalysis (PTC)." Synlett, no. 10 (2002): 1703–5. http://dx.doi.org/10.1055/s-2002-34223.

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30

Sawant, Dinesh N., Yogesh S. Wagh, Kushal D. Bhatte, and Bhalchandra M. Bhanage. "Palladium-Catalyzed Carbon-Monoxide-Free Aminocarbonylation of Aryl Halides Using N-Substituted Formamides as an Amide Source." Journal of Organic Chemistry 76, no. 13 (2011): 5489–94. http://dx.doi.org/10.1021/jo200754v.

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31

Guo, Jin-Xiang, and Jia-Jen Ho. "Ab Initio Study of Substitution Effect and Catalytic Effect of Intramolecular Hydrogen Transfer of N-Substituted Formamides." Journal of Physical Chemistry A 103, no. 32 (1999): 6433–41. http://dx.doi.org/10.1021/jp991026j.

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32

Bhanage, Bhalchandra, and Deepak Nale. "N-Substituted Formamides as C1-Sources for the Synthesis of Benzimidazole and Benzothiazole Derivatives by Using Zinc Catalysts." Synlett 26, no. 20 (2015): 2835–42. http://dx.doi.org/10.1055/s-0035-1560319.

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33

Yan, Hong, Hailong Yang, Linhua Lu, Defu Liu, Guangwei Rong та Jincheng Mao. "Copper-catalyzed synthesis of α,β-unsaturated acylamides via direct amidation from cinnamic acids and N-substituted formamides". Tetrahedron 69, № 35 (2013): 7258–63. http://dx.doi.org/10.1016/j.tet.2013.06.078.

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34

Liu, Defu, Jincheng Mao, Guangwei Rong, Hong Yan, Yang Zheng, and Jie Chen. "ChemInform Abstract: Concise Synthesis of Semicarbazides and Formylhydrazines via Direct Addition Reaction Between Aromatic Azoarenes and N-Substituted Formamides." ChemInform 46, no. 29 (2015): no. http://dx.doi.org/10.1002/chin.201529098.

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35

Sawant, Dinesh N., Yoghesh S. Wagh, Kushal D. Bhatte, and Bhalchandra M. Bhanage. "ChemInform Abstract: Palladium-Catalyzed Carbon-Monoxide-Free Aminocarbonylation of Aryl Halides Using N-Substituted Formamides as an Amide Source." ChemInform 42, no. 48 (2011): no. http://dx.doi.org/10.1002/chin.201148073.

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36

Gao, Peng, Juan Wang, Zijing Bai, Desuo Yang, Ming-Jin Fan, and Zheng-Hui Guan. "Synthesis of Substituted 2-Amino-1,3-oxazoles via Copper-Catalyzed Oxidative Cyclization of Enamines and N ,N -Dialkyl Formamides." Chemistry - An Asian Journal 12, no. 15 (2017): 1865–68. http://dx.doi.org/10.1002/asia.201700503.

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37

Gui, Qing-Wen, Fan Teng, Sheng-Neng Ying, et al. "Ultrasound-assisted tandem synthesis of tri- and tetra-substituted pyrrole-2-carbonitriles from alkenes, TMSCN and N,N-disubstituted formamides." Chinese Chemical Letters 31, no. 12 (2020): 3241–44. http://dx.doi.org/10.1016/j.cclet.2020.07.017.

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38

Yan, Hong, Hailong Yang, Linhua Lu, Defu Liu, Guangwei Rong та Jincheng Mao. "ChemInform Abstract: Copper-Catalyzed Synthesis of α,β-Unsaturated Acylamides via Direct Amidation from Cinnamic Acids and N-Substituted Formamides." ChemInform 44, № 51 (2013): no. http://dx.doi.org/10.1002/chin.201351053.

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39

Perez, Daniel G., and N. Sbarbati Nudelman. "Carbon-carbon bond formation through the carbonylation of lithium dialkylamides. One-pot synthesis of N-alkyl-substituted formamides, glyoxylamides, and hydroxymalonamides." Journal of Organic Chemistry 53, no. 2 (1988): 408–13. http://dx.doi.org/10.1021/jo00237a033.

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40

Subhedar, Dnyaneshwar D., Shyam Sunder R. Gupta, and Bhalchandra M. Bhanage. "Direct Synthesis of Amides from Oxidative Coupling of Benzyl Alcohols and N-substituted Formamides Using a Co–Al Based Heterogeneous Catalyst." Catalysis Letters 148, no. 10 (2018): 3102–11. http://dx.doi.org/10.1007/s10562-018-2519-9.

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41

PAWAR, D., H. L. MARK, H. HOSSEINI, Y. HARRIS, and E. A. NOE. "ChemInform Abstract: Conformational Studies of Alkyl Nitrites (I) Using Low-Temperature 13C; 17O, and 14N NMR Spectroscopy. 17O NMR of N-Substituted Formamides." ChemInform 24, no. 46 (2010): no. http://dx.doi.org/10.1002/chin.199346041.

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42

Gupta, Shyam Sunder R., Akhil V. Nakhate, Gunjan P. Deshmukh, et al. "Direct Synthesis of Amides from Oxidative Coupling of Benzyl Alcohols or Benzylamines with N -Substituted Formamides Using a Cu-Fe-Based Heterogeneous Catalyst." ChemistrySelect 3, no. 29 (2018): 8436–43. http://dx.doi.org/10.1002/slct.201801297.

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43

Pawar, Diwakar, Hugh L. Mark, Hasan Hosseini, Yolanda Harris, and Eric A. Noe. "Conformational studies of alkyl nitrites, using low-temperature carbon-13, oxygen-17, and nitrogen-14 NMR spectroscopy. Oxygen-17 NMR of N-substituted formamides." Journal of Physical Chemistry 97, no. 29 (1993): 7480–83. http://dx.doi.org/10.1021/j100131a015.

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44

Kumar, G. Sathish, C. Uma Maheswari, R. Arun Kumar, M. Lakshmi Kantam, and K. Rajender Reddy. "Copper-Catalyzed Oxidative CO Coupling by Direct CH Bond Activation of Formamides: Synthesis of Enol Carbamates and 2-Carbonyl-Substituted Phenol Carbamates." Angewandte Chemie International Edition 50, no. 49 (2011): 11748–51. http://dx.doi.org/10.1002/anie.201105020.

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45

Kumar, G. Sathish, C. Uma Maheswari, R. Arun Kumar, M. Lakshmi Kantam, and K. Rajender Reddy. "Copper-Catalyzed Oxidative CO Coupling by Direct CH Bond Activation of Formamides: Synthesis of Enol Carbamates and 2-Carbonyl-Substituted Phenol Carbamates." Angewandte Chemie 123, no. 49 (2011): 11952–55. http://dx.doi.org/10.1002/ange.201105020.

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46

Zhang, Yuecheng, Pengwei Cao, Hong-Yu Zhang, Guohui Yin, and Jiquan Zhao. "Cobalt nanoparticles anchoring on nitrogen doped carbon with excellent performances for transfer hydrogenation of nitrocompounds to primary amines and N-substituted formamides with formic acid." Catalysis Communications 129 (September 2019): 105747. http://dx.doi.org/10.1016/j.catcom.2019.105747.

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47

Kumar, G. Sathish, C. Uma Maheswari, R. Arun Kumar, M. Lakshmi Kantam, and K. Rajender Reddy. "ChemInform Abstract: Copper-Catalyzed Oxidative C-O Coupling by Direct C-H Bond Activation of Formamides: Synthesis of Enol Carbamates and 2-Carbonyl-Substituted Phenol Carbamates." ChemInform 43, no. 16 (2012): no. http://dx.doi.org/10.1002/chin.201216044.

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48

Jia, Mengmeng, Heng Zhang, Yongjia Lin, Dimei Chen, Yanmei Chen, and Yuanzhi Xia. "Consecutive Lossen rearrangement/transamidation reaction of hydroxamic acids under catalyst- and additive-free conditions." Organic & Biomolecular Chemistry 16, no. 19 (2018): 3615–24. http://dx.doi.org/10.1039/c8ob00490k.

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A combined Lossen rearrangement/transamidation reaction of hydroxamic acids was discovered in formamide solution, leading efficiently to a variety of N-substituted formamide derivatives under catalyst- and additive-free conditions.

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49

Koidan, Grygorii M., Anatolii P. Marchenko, Anastasiia M. Hurieva, and Aleksandr M. Kostyuk. "New phosphorus-containing polycycles with a spiroamine group." Journal of Organic and Pharmaceutical Chemistry 20, no. 1(77) (2022): 3–11. http://dx.doi.org/10.24959/ophcj.22.252844.

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Aim. To synthesize hexahydrospiro[cyclopropane-1,10’-pyrido[1,2-c]quinazoline] and 2-λ5-benzo[f][1,4,2]diazaphosphepine derivatives – new N-P containing heterocyclic compounds with the 6-azaspiro[2.5]octane fragment.Results and discussion. A new analog of the powerful electrophilic reagent – “Alder dimer” ‒ was obtained from the interaction of triflic anhydride and spiro(4-cyclopropane) piperidinyl formamide, and further used to synthesize new Nʹ-PV- and PIII-substituted Νʹ-phenyl, Νʹʹ-hexahydro(azaspiro)octylformamidinium salts – precursors of acyclic N-phosphorylated diamino carbenes with a

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Abdelrazek, Fathy Mohamed. "Heterocyclic Synthesis with Nitriles: A Novel Synthesis of Some Thiophene and Thieno[2,3-d]pyrimidine Derivatives, II [1]." Zeitschrift für Naturforschung B 44, no. 4 (1989): 488–92. http://dx.doi.org/10.1515/znb-1989-0418.

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Abstract:

Some differently substituted 4-phenylthiophene derivatives 2a-d and 8a, b have been prepared from α-substituted-β-thiocyanatomethyl cinnamonitrile (1). The thiophene derivatives 2a, b and 8a react with trichloroacetonitrile and formamide to afford thieno[2,3-d]pyrimidine derivatives 4, 5 a-c, 7 and 9 a-c, respectively.

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