Reactions of CH acids with the Michael acceptors in the presence of potassium carbonate

Russian Chemical Bulletin - New 2-cyclohexenone derivatives were synthesized via the Michael reaction in the presence of potassium carbonate. These derivatives containing the acetyl substituent in...     

Synthesis and photochromic properties of tetrakis(3,5-dimethyl-2-thienyl)- and tetrakis(2,5-dimethyl-3-thienyl)ethylenes

Tetrakis(3,5-dimethyl-2-thienyl)ethylene and tetrakis(2,5-dimethyl-3-thienyl)ethylene were obtained from the corresponding dithienyl ketones by the McMurry reaction. The photochromic properties of the compounds obtained were studied. Dedicated to the Academician N. K. Kochetkov on the occasion of his 90th birthday. __________ Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 1177–1181, May, 2005.     

Benzoylation of deactivated compounds of the thiophene and furan series with phenyldichlorocarbenium tetrachloroaluminate

The reactions of benzotrichloride with methyl and ethyl esters and nitriles of 2-thiophenecarboxylic and 2-furancarboxylic acids, with 2-acetylthiophene, 2-acetylfuran, and 2-thiophenaldehyde in the presence of an excess of anhydrous aluminum chloride have been studied. The phenyldichloromethyl group enters into position 4 of the thiophene and position 5 of the furan ring and on treating the reaction mixture with water is converted to benzoyl group.Dedicated to Professor M. A. Yurovskaya on her Jubilee.N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences (RAN), Moscow 117913 Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3. pp. 315–323, March, 2000.