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Potassium Carbonate‐Catalyzed Reactions of Salicylic Aldehydes with Allenic Ketones and Esters: an Effective Way to Synthesize Functionalized 2 H ‐Chromenes
Author(s) -
Shi Min,
Dai LunZhi,
Shi YongLing,
Zhao GuiLing
Publication year - 2006
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.200505496
Subject(s) - chemistry , potassium carbonate , catalysis , potassium , carbonate , salicylic acid , organic chemistry , medicinal chemistry , aldehyde , biochemistry
Potassium carbonate‐catalyzed reactions of salicylic aldehydes with 3‐methylpenta‐3,4‐dien‐2‐one, 3‐benzylpenta‐3,4‐dien‐2‐one or ethyl 2‐methylbuta‐2,3‐dienoate gave the corresponding functionalized 2 H ‐1‐chromenes in good to excellent yields and good stereoselectivities in some cases in DMSO at 120 °C within 1 h, respectively.