作者:Jochen Mattay、Jan Runaink、Roland Heckendorn、Tamno Winkler
DOI:10.1016/s0040-4020(01)87784-x
日期:——
Upon irradiation, cyclic enol ethers such as 1-methoxy-cyclopentene (4) mainly add across the cyano group of benzonitrile (1), under formation of 2-azabutadienes of an imidoester type. This is in agreement with the so-called Δ G-correlation which was reported earlier (ref. 5 and 6). 4-Phenyloxazole (9) is formed from 1 and 1,3-dioxole (5) probably by a similar photochemical process followed by electrocyclic
辐射后,在形成亚氨基酯型2-氮杂丁二烯的过程中,环状烯醇醚(例如1-甲氧基环戊烯(4))主要加在苄腈(1)的氰基上。这与先前报道的所谓ΔG相关性一致(参考文献5和6)。由1和1,3-二恶唑(5)形成的4-苯基恶唑(9)可能是通过类似的光化学过程进行的,然后进行开环和水解。后者光反应的低产率和几乎5到1之间的几乎能工电子转移可能表明反向电子转移是主要的能量浪费过程。从1和2,3-二氢呋喃(2)仅以低收率分离了邻环加合物6。