P. Clark, D. Mckinnon
Feb 1, 1982
Citations
0
Influential Citations
33
Citations
Journal
Canadian Journal of Chemistry
Abstract
The use of 2,3-dihydrobenzo[b]thiophene-2,3-dione as a source of 2-mercaptophenylacetic acid permits a convenient preparation of 2-carboxymethylthiophenylacetic acid or derivatives. These undergo a Dieckmann cyclization to 3-acetoxybenzothiopyrans, which may be hydrolysed to thiochroman-3-ones. The further reactions of some of these are described.