Carbamoyl fluorides are formed in reactions of hydroxylamines with difluorocarbene generated from sodium bromodifluoroacetate as readily available and non‐toxic carbene precursor. The process shows a high functional group tolerance, and the reaction path has been rationalized by computational calculations.
Imine-Forming Radical Elimination Reactions of<i>O</i>-(1-Naphthoyl)-<i>N,N</i>-bis(<i>p</i>-substituted benzyl)hydroxylamines Activated by Triplet Benzophenone
作者:Fumihiko Andoh、Kanji Kubo、Tadamitsu Sakurai
DOI:10.1246/bcsj.72.2537
日期:1999.11
benzylidene)benzylamine 2 and 1-naphthoic acid (3) as unimolecular radical elimination products. The logarithm of the kr/kd ratio (where kr is the rate constant for homolytic cleavage of the N–O bond in triplet 1 and kd is that for its deactivation) used as a measure of the triplet-state reactivities of 1, showed a negligible dependence on the substituent constant. This finding was explained in terms