Reactivity of Allenylphosphonates toward Salicylaldehydes and Activated Phenols: Facile Synthesis of Chromenes and Substituted Butadienes

The reaction of salicylaldehydes with allenylphosphonates in the presence of a base leads to a variety of phosphono-chromenes and allylic phosphonates. Optimization of reaction conditions reveals that DBU (base) in DMSO (solvent) is the best combination in most cases, with DBU acting as an organocat...

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Veröffentlicht in:	Journal of organic chemistry 2009-08, Vol.74 (15), p.5395-5404
Hauptverfasser:	Kumar, N. N. Bhuvan, Reddy, M. Nagarjuna, Swamy, K. C. Kumara
Format:	Artikel
Sprache:	eng
Schlagworte:	Aldehydes - chemistry Benzopyrans - chemical synthesis Benzopyrans - chemistry Butadienes - chemical synthesis Butadienes - chemistry Catalysis Catalysts: preparations and properties Chemical reactivity Chemistry Exact sciences and technology General and physical chemistry Heterocyclic compounds Heterocyclic compounds with o, s, se, te hetero atom and condensed derivatives Molecular Structure Noncondensed benzenic compounds Organic chemistry Organophosphonates - chemistry Phenols - chemistry Preparations and properties Reactivity and mechanisms Stereoisomerism Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Online-Zugang:	Volltext
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