Direct Enantioselective C(sp<sup>3</sup>)–H Acylation for the Synthesis of α-Amino Ketones
作者:Xiaomin Shu、Leitao Huan、Qian Huang、Haohua Huo
DOI:10.1021/jacs.0c10471
日期:2020.11.11
under mild conditions. The synthetic utility of this method is further demonstrated by gram scale synthesis and application to late-stage functionalization. This method provides an unprecedented solution to address the challenging stereocontrol in metallaphotoredox catalysis and C(sp3)-H functionalization. Mechanistic studies suggest the α-C(sp3)-H bond of the benzamide coupling partner is cleavage
Takamoto, Yakugaku Zasshi/Journal of the Pharmaceutical Society of Japan, 1928, vol. 48, # 9, p. 108
作者:Takamoto
DOI:——
日期:——
v. Braun; Steindorff, Chemische Berichte, 1905, vol. 38, p. 173
作者:v. Braun、Steindorff
DOI:——
日期:——
Hydroxylamine‐Derived Reagent as a Dual Oxidant and Amino Group Donor for the Iron‐Catalyzed Preparation of Unprotected Sulfinamides from Thiols
作者:Sayanti Chatterjee、Szabolcs Makai、Bill Morandi
DOI:10.1002/anie.202011138
日期:2021.1.11
An iron catalyzed reaction for the selective transformation of thiols (‐SH) to sulfinamides (‐SONH2) by a direct transfer of ‐O and free ‐NH2 groups has been developed. The reaction operates undermildconditions using a bench stable hydroxylamine derived reagent, exhibits broad functional group tolerance, is scalable and proceeds without the use of any precious metal catalyst or additional oxidant
Mechanism of the von Braun amide degradations with carbonyl bromide or phosphorus pentabromide
作者:B.A. Phillips、G. Fodor、J. Gal、F. Letourneau、J.J. Ryan
DOI:10.1016/s0040-4020(01)93483-0
日期:1973.1
isolation of crystalline n-alkylene-α-bromoiminium bromides, and their smooth thermal decomposition, which makes the von Pechmann-von Braun type of degradation competitive to the Hofmann methylation; (2) new procedure was found for preparing ammonium tribromides and iododibromides using carbonyl bromide; (3) a number of the heterofore unknown imidoyl bromides have been prepared and characterized, and their