109407-54-7Relevant articles and documents
Bi(I)-Catalyzed Transfer-Hydrogenation with Ammonia-Borane
Wang, Feng,Planas, Oriol,Cornella, Josep
, p. 4235 - 4240 (2019)
A catalytic transfer-hydrogenation utilizing a well-defined Bi(I) complex as catalyst and ammonia-borane as transfer agent has been developed. This transformation represents a unique example of low-valent pnictogen catalysis cycling between oxidation states I and III, and proved useful for the hydrogenation of azoarenes and the partial reduction of nitroarenes. Interestingly, the bismuthinidene catalyst performs well in the presence of low-valent transition-metal sensitive functional groups and presents orthogonal reactivity compared to analogous phosphorus-based catalysis. Mechanistic investigations suggest the intermediacy of an elusive bismuthine species, which is proposed to be responsible for the hydrogenation and the formation of hydrogen.
Synthesis and reaction of dimethyl 7-bromoindole-2,3-dicarboxylates
Miki, Yasuyoshi,Matsushita, Ko-Ichi,Hibino, Hajime,Shirokoshi, Hideaki
, p. 1585 - 1596 (2007/10/03)
Reaction of 1-(4-benzyloxyphenyl)-2-phenylhydrazine with dimethyl acetylenedicarboxylate (DMAD) gave dimethyl 5-benzyloxyindole-2,3- dicarboxylate and dimethyl indole-2,3-dicarboxylate. However, treatment of 1- (2-bromophenyl)-2-phenylhydrazine with DMAD
