Epprecht, Justus Liebigs Annalen der Chemie, 1894, vol. 278, p. 79
作者:Epprecht
DOI:——
日期:——
Pteridine Chemistry. I
作者:Robert B. Angier、Coy W. Waller、James H. Boothe、John H. Mowat、Joseph Semb、Brian L. Hutchings、E. L. R. Stokstad、Y. SubbaRow
DOI:10.1021/ja01189a058
日期:1948.9
US6972343B1
申请人:——
公开号:US6972343B1
公开(公告)日:2005-12-06
Generation, electrocyclic ring opening, and unprecedented conversion of a 3-acylaminoazetinone into <i>cis</i>-3,4-disubstituted azetidinones
作者:Saul Wolfe、Stephen Ro、Zheng Shi
DOI:10.1139/v01-102
日期:2001.8.1
at sulfur, followed by fragmentation into a four-membered thietanone and a four-membered 3-acylaminoazetinone. The azetinone undergoes electrocyclicringopening, with a calculated half-life of 11 s at 40°C, to a trans-disubstituted vinyl isocyanate, but can be trapped by saturated, unsaturated allylic and benzylic alcohols to form 3,4-disubstituted azetidinones in which the cis- isomer predominates