Various 2-(3′-phenylthiopropyl)cycloalkanones were prepared from the corresponding cyclic ketones and subjected to S-alkylation by triethyloxoniumtetrafluoroborate followed by potassium -butoxide treatment to give bicyclic epoxides with new five-membered carbocycles. A related cyclization to a six-membered ring was also observed.
作者:Jack K. Crandall、H. Steve Magaha、Mark A. Henderson、Rexford K. Widener、Gregg A. Tharp
DOI:10.1021/jo00148a025
日期:1982.12
CRANDALL J. K.; MAGAHA H. S.; WIDENER R. K.; THARP G. A., TETRAHEDRON LETT., 1980, 21, NO 50, 4807-4810
作者:CRANDALL J. K.、 MAGAHA H. S.、 WIDENER R. K.、 THARP G. A.
DOI:——
日期:——
CRANDALL, J. K.;MAGAHA, H. S.;HENDERSON, M. A.;WIDENER, R. K.;THARP, G. A+, J. ORG. CHEM., 1982, 47, N 27, 5372-5380
作者:CRANDALL, J. K.、MAGAHA, H. S.、HENDERSON, M. A.、WIDENER, R. K.、THARP, G. A+
DOI:——
日期:——
The preparation of synthetically useful carbonyl-protected δ- and ε-lithio ketones via reductive lithiation
作者:Shirong Zhu、Theodore Cohen
DOI:10.1016/s0040-4020(97)10230-7
日期:1997.12
and ε-lithioketone equivalents. Primary and tertiary organolithiums have been generated and the ketone function may be part of a ring. The major synthetic use demonstrated in this report is the conversion to mixed heterocuprates which react with acyl chlorides to yield mono-protected 1,6- or 1,7-diketones. The cuprates also undergo conjugateaddition to enones.