Amino derivatives of mono- and diethynyldiarylalkanes

Conclusion The synthesis of acetylenic amine derivatives of 4-ethynyldiphenylmethane, 4,4 diethynylbibenzyl, and 4,4-diethynyl-,-diethylbibenzyl has been described.Translated from Izvestiya Akademii Nauk, SSSR, Seriya Khimicheskaya, No. 2, pp. 458–459, February, 1967.     

Synthesis of higher 1,3-diols from ethylene and carboxylic acid chlorides

Conclusions A new method was developed for obtaining the higher 1,3-diols, which is based on the use of carboxylic acid chlorides and ethylene.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 909–911, April, 1981.     

Acylation of thermal acetylenes

Conclusions A new method was developed for obtaining acetylenic ketones via the reaction of terminal acetylenes with the acid chlorides of aliphatic and aromatic acids in the presence of catalytic amounts of CuI without using Pd compounds.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1158–1159, May, 1981.     

The synthesis of acetylenic acetals

Zinc chloride on silica gel is an active catalyst for the condensation of ethyl orthoformate with terminal acetylenes.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1172–1173, May, 1990.     

Synthesis of fluorine-containing methoxy-1,3-diketones

A method is proposed for the synthesis of fluorine-containing methoxy-1,3-diketones by hydrolysis of N-phenylaminoalkenyl ketones, produced by the reaction of aniline and the respective methoxyalkynyl ketone in dioxane. With methanol an imine is also formed, and methyl trifluoroacetate is eliminated.Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk. Translated fromIzvestiya Akademii Nauk, Seriya Khimicheskaya, No. 6, pp. 1390–1392, June, 1992.     

Aminomethylation of hindered 2-propargyl-1,3-diketones

2-Propargyl-substituted methoxy-1,3-diketones react with alkoxymethylamines or paraform and secondary amines in the presence of CuCl at the acetylene group to afford Mannich bases.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 1293–1295, May, 1996.     

Synthesis of acetylenic ketones from straight-chain acid chlorides

Conclusions A method for the catalytic condensation of acetylenes with the acid chlorides of unbranched aliphatic acids was found.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 687–688, March, 1984.     

Acylation of acetylene compounds in the presence of divalent copper salts and chelates

Conclusions Salts and chelates of bivalent copper effectively catalyze the formation of acetylenic ketones from terminal acetylene compounds and carboxylic acid chlorides in the presence of tertiary amines.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 855–858, April, 1986.The authors express gratitude to V. L. Varand for elemental analysis of the chelates.