H. Nakazumi, Shigeru Watanabe, K. Maeda
Apr 1, 1990
Citations
0
Influential Citations
9
Citations
Journal
Chemistry Letters
Abstract
2-(Amino-substituted methylene)-2H,3H-1-benzothiophene-3-ones were prepared by ring contraction of 3-bromo-4H-1-benzothiopyran-4-one with amines, as a new donor–acceptor chromophore. The structure of 2-(N,N-dimethylaminomethylene) derivative was determined by X-ray crystallographic analysis.