Highly selective photoreactions of α-oxoamides and α-tropolone alkyl ethers in crystalline inclusion complexes
作者:Fumio Toda、Koichi Tanaka、Minoru Yagi
DOI:10.1016/s0040-4020(01)90265-0
日期:1987.1
Control of photocyclization of three α-oxoamides in crystalline inclusion complexes with three kinds of host compounds was studied. In all cases, β-lactams were obtained exclusively. In two cases, cis-β-lactams were formed selectively. By an enantioselective control using an optically active host compound, 1,6-di(o-chlorophenyl)-1,6-diphenylhexa-2, 4-diyne-l,6-diol, optically active β-lactams of high
研究了与三种主体化合物的结晶包合物中三种α-氧代酰胺的光环化作用。在所有情况下,仅获得β-内酰胺。在两种情况下,选择性地形成顺式-β-内酰胺。通过使用光学活性主体化合物1,6-二(邻-氯苯基)-1,6-二苯基己-2,4-二炔-1,6-二醇的对映选择性控制,得到高对映体过量的光学活性β-内酰胺。获得。用固态的上述旋光主体化合物辐照α-四氢呋喃烷基醚的配合物,得到[2 + 2]光反应产物1-烷氧基双环[3.2.0] hepta-3,6-dien-2-one ,及其开环衍生物4-氧代-2-环戊烯-1-乙酸烷基酯,分别对映体过量100和72-91%。