Directed ortho metalation reactions of aryl O-carbamates; a regiospecific synthesis of 2,2-disubstituted 2H-1-benzopyrans

Citation
Ba. Chauder et al., Directed ortho metalation reactions of aryl O-carbamates; a regiospecific synthesis of 2,2-disubstituted 2H-1-benzopyrans, SYNTHESIS-S, (1), 2001, pp. 140-144
Citations number
29
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
SYNTHESIS-STUTTGART
ISSN journal
00397881 → ACNP
Issue
1
Year of publication
2001
Pages
140 - 144
Database
ISI
SICI code
0039-7881(200101):1<140:DOMROA>2.0.ZU;2-D
Abstract
one-pot regiocontrolled synthesis of 2,2-disubstituted 2H-1-benzopyrans 5 f rom aryl O-carbamates 4 using the directed ortho metalation reaction is des cribed and constitutes an advantageous complement to classical routes for t his class of heterocycles.