1071842-34-6Relevant articles and documents
Vilsmeier-Haack reaction of 1-cyclopropyl-2-arylethanones
Tang, Xiang-Ying,Shi, Min
supporting information; experimental part, p. 8317 - 8320 (2009/04/11)
(Chemical Equation Presented) A convenient and efficient method to synthesize 3-(2-chloroethyl)-5-aryl-4H-pyran-4-ones 2 and 2-chloro-3-(2- chloroethyl)-1-naphthaldehydes 3 in moderate to good yields was developed via the Vilsmeier-Haack reaction of readily available 1-cyclopropyl-2-arylethanones 1 at different temperature. This reaction proceeds via sequential enolization, ring opening, haloformylation, and intramolecular nucleophilic cyclization or Friedel-Crafts alkylation reactions to produce 2 or 3.