3-triazole- and 5-amino-1,2,3-thiadiazole-4-N-R-carbothioamides to 5-N-R-amino-1,2,3-thiadiazole-4-carbothioamides. NMR 1H and 13C spectra and mass-spectra are presented for the series of 5-amino-1,2,3-thiadiazole derivatives.
Modification of organic compounds with Lawesson’s reagent
作者:L. A. Kayukova、K. D. Praliyev、V. G. Gut’yar、G. P. Baitursynova
DOI:10.1134/s1070428015020025
日期:2015.2
Application in organic synthesis of Lawesson’s reagent, 2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide, provides a possibility to replace an oxygen atom for a sulfur atom in the carbonyl group of ketones, esters, amides, in ether group, and also either to induce a rearrangement of the initial structure of organic compounds with or without inclusion of sulfur atoms or to lead to
Thioisomünchnones versus Acrylamides via Copper-Catalyzed Reaction of Thioamides with Diazocarbonyl Compounds
作者:Vladimir G. Ilkin、Valeriy O. Filimonov、Eugenia A. Seliverstova、Mikhail S. Novikov、Tetyana V. Beryozkina、Aleksey A. Gagarin、Nataliya P. Belskaya、Nibin Joy Muthipeedika、Vasiliy A. Bakulev、Wim Dehaen
DOI:10.1021/acs.joc.2c01352
日期:2022.9.16
was developed by intermolecular copper-catalyzed reactions of diazoacetamides with aromatic and heteroaromatic thioamides bearing a pyrrolidine moiety. The direction of the reaction can be switched toward 2-amino-2-heteroarylacrylamides by replacing the pyrrolidine with an aniline group or by the use of 2-cyano-2-diazoacetamides. The proposed mechanism and DFT calculations allowed us to rationalize the
Heterocyclization of compounds containing diazo and cyano groups. 3. Two pathways in the cyclization of 2-diazo-2-cyanoacetic acid derivatives under the influence of bases
作者:Yu. M. Shafran、V. A. Bakulev、V. S. Mokrushin、S. G. Alekseev、A. T. Lebedev、P. A. Sharbatyan