N-Sulfonyl indoles can be easily deprotected by a photoinduced electron transfer reaction with triethylamine. By using an equivalent amount of n-Bu3SnH in the photolysis medium, it is possible to suppress the competitive photo-Fries like rearrangement by scavenging the phenylsulfonyl radical.
N-磺酰基
吲哚可以通过与
三乙胺的光诱导电子转移反应而容易地脱保护。通过在光解介质中使用等量的n -Bu 3 SnH,可以通过清除苯基磺酰基自由基来抑制竞争性的光敏性,如重排。