quantitative phototransformation that yields rare, chiral N,B,X‐containing heterocycles, such as base‐stabilized 1,2‐thiaborinines and 1,2‐oxaborinines. Boriranes were observed as intermediates in some of these transformations. The oxaborinines display further reactivity, generating 4a,12b‐dihydrobenzo[h][1,2]oxaborinino[4,3‐f]quinolines through a sequential conrotatory electrocyclization and a [1,5]‐H shift.
具有螯合主链和均杂环/杂环取代基(
噻吩基,
呋喃基及其衍
生物)的手性有机
硼化合物会经历定量的光转化,从而生成稀有的,含手性N,B,X的杂环,例如碱稳定的1,2-
噻吩硼烷酮和1,2-氧杂
嘌呤 在某些转化中,
硼烷被视为中间体。氧杂
嘌呤类化合物显示出进一步的反应性,生成4a,12b-二氢苯并[ h ] [1,2]氧杂
卟啉[4,3- f通过顺序旋转电环化和[1,5] -H位移生成]
喹啉。含N,B,X的杂环在固态下显示出强烈的蓝绿色至橙红色发射。组合的DFT // CA
SP2T计算表明,常见的双基中间体负责这些化合物的形成及其相互转化。