A new and efficient synthesis of 2,2-disubstituted-3,4-dihydro-2H-1-benzopyrans

Citation
Js. Yadav et al., A new and efficient synthesis of 2,2-disubstituted-3,4-dihydro-2H-1-benzopyrans, J CHEM S P1, (18), 2000, pp. 3082-3084
Citations number
15
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1
ISSN journal
14704358 → ACNP
Issue
18
Year of publication
2000
Pages
3082 - 3084
Database
ISI
SICI code
1470-4358(2000):18<3082:ANAESO>2.0.ZU;2-8
Abstract
3,4-Dihydro-2,4-dimethoxy-2-methyl-2H-1-benzopyrans are formed in high yiel ds by the cyclocondensation of o-hydroxybenzaldehydes with 2,2-dimethoxypro pane catalysed by elemental iodine at room temperature.