[bmIm]OH catalyzed hetero-cyclisation of o-halobenzoic acid and alkyne: A green approach to synthesize isocoumarins
作者:Malik A. Waseem、Shireen、Afaf A. Abumahdi、Arjita Srivastava、Anjali Srivastava、Rahila、I.R. Siddiqui
DOI:10.1016/j.catcom.2014.06.010
日期:2014.10
Efficient and environmentally benign heterocyclization of o-halobenzoic acid and alkyne has been developed using [bmIm]OH as green catalyst. This methodology offers a metal and base free approach and is endowed with mild reaction conditions, high yields and better functional group tolerating ability. The recyclability and reuse of [bmIm]OH add the methodology a wide scope. (C) 2014 Elsevier B.V. All rights reserved.
Carbon-13 NMR spectra of isocoumarin,N-methyl-1(2H)-isoquinolinone and related compounds
作者:S. L. Spassov、I. A. Atanassova、M. A. Haimova
DOI:10.1002/mrc.1270220314
日期:1984.3
AbstractThe 13C NMR spectra of isocoumarin, N‐methyl‐1(2H)‐isoquinolinone and 14 of their 3‐ and/or 4‐substituted derivatives were measured and assigned with the aid of various spectral techniques. The values of the one‐bond and some of the long‐range 13C‐13C‐1H coupling constants are reported. The effect of substitution on the 13C chemical shifts is discussed.
Woroshzow; Bogusewitsch, Zhurnal Obshchei Khimii, 1940, vol. 10, p. 2014