Title of article
A novel carbanion-olefin intramolecular cyclization: synthesis of substituted 2-aroyl-3,4-dihydro-2H-benzopyrans from salicylaldehydes
Author/Authors
Chen، نويسنده , , Liang-Yeu and Li، نويسنده , , Sie-Rong and Chen، نويسنده , , Po-Yuan and Tsai، نويسنده , , Ian-Lih and Hsu، نويسنده , , Chia-Ling and Lin، نويسنده , , Hsin-Ping and Wang، نويسنده , , Tzu-Pin and Wang، نويسنده , , Eng-Chi، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2009
Pages
3
From page
5748
To page
5750
Abstract
Utilization of a novel carbanion-olefin intramolecular 6-endo-trig cyclization reaction to provide 2-aroyl-3,4-dihydro-2H-benzopyrans is described. Through a sequence of a Wittig reaction, O-alkylation, and carbanion-olefin intramolecular cyclization, salicylaldehydes were converted into a series of new 2-aroyl-3,4-dihydro-2H-benzopyrans in two steps or in one-pot reaction.
Keywords
Carbanion-olefin intramolecular cyclization , Substituted 2-aroyl-3 , 4-Dihydro-2H-benzopyrans
Journal title
Tetrahedron Letters
Serial Year
2009
Journal title
Tetrahedron Letters
Record number
1866113
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