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Showing papers by "G. I. Nikishin published in 1973"


Journal ArticleDOI
TL;DR: In this paper, the thermal decomposition of 2-methyltetrahydrofuran in solution was studied and the principal products were identified, and it was shown that the decomposition proceeds to a large degree with an opening of the tetrahedron ring.
Abstract: A study was made of the thermal decomposition of the hydroperoxide and peroxide of 2-methyltetrahydrofuran in solution, the principal products were identified, and it was shown that the decomposition proceeds to a large degree with an opening of the tetrahydrofuran ring A reaction mechanism was proposed

1 citations


Journal ArticleDOI
TL;DR: In this paper, a new homolytic cyclization reaction was discovered, namely the formation ofγ-butyrolactone from theγ-carbomethoxypropyl radicals that are obtained during the decomposition of the dimethyl ester of peroxydiglutaric acid.
Abstract: 1. We synthesized the esters of some peroxydicarboxylic acids\({\text{CH}}_{\text{3}} {\text{OOC(CH}}_{\text{2}} {\text{)}}_n \mathop {\text{C}}\limits^{\mathop {{\text{||}}}\limits^{\text{O}} } {\text{OO}}\mathop {\text{C}}\limits^{\mathop {{\text{||}}}\limits^{\text{O}} } {\text{(CH}}_{\text{2}} {\text{)}}_n {\text{COOCH}}_{\text{3}} \), and determined the kinetic parameters of the reaction for their thermal decomposition in CH3COOH and benzene. The predominant generation of CH3OOC(CH2). n radicals occurs in the decomposition of the lower homologs (n=2,3), while the\({\text{CH}}_{\text{3}} {\text{OOC(CH}}_{\text{2}} {\text{)}}_n \mathop {\text{C}}\limits^{\mathop {{\text{||}}}\limits^{\text{O}} } {\text{O}}\) radicals are obtained mainly from the higher homologs (n=6,8). 2. A new homolytic cyclization reaction was discovered, namely the formation ofγ-butyrolactone from theγ-carbomethoxypropyl radicals that are obtained during the decomposition of the dimethyl ester of peroxydiglutaric acid.

1 citations



Journal ArticleDOI
TL;DR: In this paper, a study was made of the dehydrocarboxylation of some acetoxyalkanoic acids RR'CHCH(COOH) (CH2)nOAc by the joint action of tetravalent lead and divalent copper acetates in the presence of pyridine.
Abstract: 1. A study was made of the dehydrocarboxylation of some acetoxyalkanoic acids RR'CHCH(COOH) (CH2)nOAc by the joint action of the tetravalent lead and divalent copper acetates in the presence of pyridine. 2. Conditions were found for running the dehydrocarboxylation that assured a high conversion of the acids to the cis- and trans-acetates RR'CH=CH(CH2)nOAc and RR'CHCH=CH(CH2)n-1OAc. 3. The mutual arrangement of the acetoxyl and carboxyl groups and the structure of the RR'CH fragment of the acid exert a substantial influence on the ratio of the formed acetates.