Cleavage of N ‘,N ‘-Dialkylhydrazides with PhI(OH)OTs
摘要:
[GRAPHICS]N',N'-Dimethylhydrazides are efficiently cleaved to give the carboxylic acid upon treatment with Phl(OH)OTs in water or water/CH2Cl2 mixtures, The reaction occurs with the evolution of a gas.
N,N-Dialkylation of Acyl Hydrazides with Alcohols Catalyzed by Amidato Iridium Complexes via Borrowing Hydrogen
作者:Wan-Hui Wang、Wei-Yu Shao、Jia-Yue Sang、Xu Li、Xiaoqiang Yu、Yoshinori Yamamoto、Ming Bao
DOI:10.1021/acs.organomet.3c00026
日期:2023.9.25
Direct N,N-dialkylation of acylhydrazide catalyzed by a series of amidato iridium complexes bearing an electron-donating group in the ligand using methanol or ethanol as the alkyl reagent under weak base conditions (10 mol % KHCO3) is described. A wide range of acylhydrazidederivatives are converted to the corresponding N,N-dialkylated products in excellent yields (38 examples, yields of ≤96%).
Kornet, Milton J.; Tita, Terence T.; Thio, Alan P., Synthetic Communications, 1986, vol. 16, # 10, p. 1261 - 1274
作者:Kornet, Milton J.、Tita, Terence T.、Thio, Alan P.
DOI:——
日期:——
Reactions of hydrazines with esters and carboxylic acids
作者:Richard Frederick Smith、Alvin C. Bates、Angello J. Battisti、Peter G. Byrnes、Christine T. Mroz、Thomas J. Smearing、Frederick X. Albrecht
DOI:10.1021/jo01266a085
日期:1968.2
Trimethylsilyl derivatives of 2,2-dimethylhydrazides of aromatic acids
作者:I. D. Kalikhman、O. B. Bannikova、L. I. Volkova、B. A. Gostevskii、T. I. Yushmanova、V. A. Lopyrev
DOI:10.1007/bf00957450
日期:1988.2
Dialkylhydrazides for directed orthometalations
作者:Scott A Pratt、Michael P Goble、Michael J Mulvaney、Peter G.M Wuts
DOI:10.1016/s0040-4039(00)00462-7
日期:2000.5
Dimethylhydrazides are shown to be excellent substrates for the directed orthometalation reaction. The advantage of using the hydrazide is that it is easily removed by treatment with H5IO6 or CuCl2 to give the carboxylic acid under very mild conditions, in contrast to other amides that generally require harshly acidic conditions to achieve hydrolysis. (C) 2000 Elsevier Science Ltd. All rights reserved.