Ayyangar, N. R.; Brahme, K. C.; Shingare, M. S., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1989, vol. 28, # 1-11, p. 961 - 963
作者:Ayyangar, N. R.、Brahme, K. C.、Shingare, M. S.、Srinivasan, K. V.
DOI:——
日期:——
N-arylhydroxamic acids: reaction of nitroso aromatics with .alpha.-oxo acids
AYYANGAR, N. R.;BRAHME, K. C.;SHINGARE, M. S.;SRINIVASAN, K. V., INDIAN J. CHEM. B , 28,(1989) N1, C. 961-963
作者:AYYANGAR, N. R.、BRAHME, K. C.、SHINGARE, M. S.、SRINIVASAN, K. V.
DOI:——
日期:——
AYYANGAR N. R.; BRAHME K. C.; SRINIVASAN K. V., SYNTHESIS,(1987) N 1, 64-65
作者:AYYANGAR N. R.、 BRAHME K. C.、 SRINIVASAN K. V.
DOI:——
日期:——
A Novel Synthesis of Clonidine, an Anti-Hypertensive Drug from<i>o</i>-Chloronitrobenzene
作者:N. R. Ayyangar、K. C. Brahme、K. V. Srinivasan
DOI:10.1055/s-1987-27847
日期:——
An elegant, cost-effective synthesis of clonidine (4) is reported from readily available starting materials. o-Chlorophenylhydroxylamine (2), obtained from o-chloronitrobenzene, is formylated to N-(2-chlorophenyl)-N-hydroxyformamide (3). In a one-pot procedure, 3 is converted to clonidine by chlorination with thionyl chloride and then with thionyl chloride/sulfuryl chloride, followed by condensation with ethylenediamine.