作者:Tadashi Hasegawa、Jun-ichi Moribe、Michikazu Yoshioka
DOI:10.1246/bcsj.61.1437
日期:1988.4
β-Oxo amides 1 adsorbed on silica gel underwent photocyclization via δ-hydrogen abstraction to give the five-membered lactams 2. No severe restrictions on the molecular motion could be observed in the photoreaction on the silica-gel surface. However, the relative photoreactivity of N,N-dibenzyl-2-benzoylacetamide (1a) to N,N-dibenzyl-2-benzoylpropionamide (1b) increased greatly on the silica-gel surface
吸附在硅胶上的 β-氧代酰胺 1 通过 δ-氢提取进行光环化,得到五元内酰胺 2。在硅胶表面的光反应中没有观察到对分子运动的严重限制。然而,与溶液相比,N,N-二苄基-2-苯甲酰乙酰胺(1a)与N,N-二苄基-2-苯甲酰丙酰胺(1b)的相对光反应性在硅胶表面上大大增加,可能是因为更大的表面的酮含量。