Showing papers by "Yu. N. Ogibin published in 2005"

Synthesis of 1,1′-bishydroperoxydi(cycloalkyl) peroxides by homocoupling of 11–15-membered gem-bis(hydroperoxy)cycloalkanes in the presence of boron trifluoride

Abstract: A procedure was developed for the synthesis of 1,1′-bishydroperoxydi(C11-C15-cycloalkyl) peroxides based on homocoupling of geminal 11–15-membered bis(hydroperoxy)cycloalkanes in the presence of BF3⋅OEt2.

New Preparation of 1,2,4,5-Tetraoxanes.

Abstract: A convenient procedure was developed for the synthesis of 1,2,4,5-tetraoxanes based on the reaction of gem-bishydroperoxycycloalkanes with ketals and acetals catalyzed by boron trifluoride etherate, which makes it possible to prepare the target products in yields from 13 to 93%.

Electrooxidative coupling of salts of nitro compounds with halide, nitrite, cyanide, and phenylsulfinate anions

Abstract: Electrolysis of salts of primary and secondary nitro compounds (nitroethane, 1- and 2-nitropropanes, nitrocyclohexane, and nitrocycloheptane) in the presence of excess halide, nitrite, cyanide, and phenylsulfinate anions under undivided and divided amperostatic electrolysis conditions in a two-phase medium (CH2Cl2/H2O) produces geminal nitrohalides (35–85% yields), dinitro compounds (15–51%), nitronitriles (6–27%), and nitrosulfones (50–70%). The salts of secondary nitro compounds form the products of oxidative coupling with halide and phenylsulfinate anions under the undivided electrolysis conditions. In all other cases, divided electrolysis is required.

Electrochemical Synthesis of Geminal Azidonitro Compounds.

Abstract: An electrochemical method for the synthesis of geminal azidonitro compounds was developed. The method involves electrooxidative coupling of azide anions with salts of nitro compounds and affords geminal azidonitroalkanes, azidonitrocycloalkanes, and diazidodinitrocycloalkanes in 45–92% yields.