Electrophilic intramolecular cyclization of functional derivatives of unsaturated compounds: IV. Cyclosulfenylation of 5-hexenoic acid amides and nucleophilic cleavage of reaction products

被引:0
|
作者
Vas'kevich, A. I. [1 ]
Tsizorik, N. M. [1 ]
Staninets, V. I. [1 ]
Vovk, M. V. [1 ]
机构
[1] Natl Acad Sci Ukraine, Inst Organ Chem, UA-02094 Kiev, Ukraine
关键词
STEREOSELECTIVE-SYNTHESIS; INTERMEDIATE;
D O I
10.1134/S1070428013080125
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Anilides of 5-hexenoic acid react with arylsulfenyl chlorides in nitromethane in the presence of lithium perchlorate affording products of electrophilic cyclization, N-{6-[(arylsulfanyl)methyl]tetrahydro-2H-pyran-2-ylidene}anilinium perchlorates. The treatment of the latter with sodium acetate or secondary cycloalkylamines in the presence of water results in the opening of the tetrahydropyran ring and provides anilides or cycloalkylamides of 6-arylsulfanyl-5-hydroxyhexanoic acid.
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页码:1168 / 1174
页数:7
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