Selective reduction of carbonyl groups in the presence of low-valent titanium reagents
作者:Wei Lin、Ming-Hua Hu、Xian Feng、Lei Fu、Cheng-Pao Cao、Zhi-Bin Huang、Da-Qing Shi
DOI:10.1016/j.tetlet.2014.02.072
日期:2014.4
The chemoselective reduction of several structurally diverse compounds containing carbonyl groups was achieved in the presence of low-valenttitaniumreagents. This novel synthetic method provides easy access to highly selective reduction of carbonyl groups, and possesses several advantages including one-step procedure, convenient manipulation, good to excellent yields, and short reaction times.
Copper(II) efficiently catalyzes the aerobic oxidation of aryl thioacetamides into the corresponding α-keto aryl thioamides in moderate to high yields in the presence of K2CO3 under O2 atmosphere. This protocol is simple, clean, and generates water as the only byproduct. A mechanism is proposed for the reaction course.
Reactions of N-thioacetylmorpholine anion with iodoarenes and 1-iodoadamantane by the SRN1 mechanism
作者:Marcelo C Murguía、Roberto A Rossi
DOI:10.1016/s0040-4039(97)00098-1
日期:1997.2
The anion of N-acetylthiomorpholine 2 was studied in photostimulated reactions with iodobenzene 1a and 1-iodonaphthalene 1b in DMSO, giving good yields of the substitution products 3a and 3b by the SRN1 mechanism. The reaction of 1a with 2 is also induced with FeBr2. 1-Iodoadamantane 4 did not react with the anion of N-acetylmorpholine, but reacted with 2 to give the substitution product 5 under irradiation