Novel and Efficient Method for The Synthesis of 4-Chloro-5, 6-Dihydro Pyran Derivatives using Lewis Acidic Chloroaluminate Ionic Liquids
作者:N. Raju、K. Rajasekhar、J. Babu、B. Rao
DOI:10.13005/ojc/320459
日期:2016.8.25
The reaction of aldehydes/ketones with homopropargylic alcohols in the presence of 1-n-Butyl-3-methylimidazolium chloroaluminate [bmim]Cl·AlCl3 (N = 0.56-0.67) ionic liquid generates the 4-chloro-5,6-dihydro-2H-pyran derivatives in excellent yield and in short reaction times.
ZrCl4 mediated cyclization between epoxides and homopropargylic alcohols: synthesis of 4-chloro-5,6-dihydro-2H-pyran derivatives
作者:J.S. Yadav、K. Rajasekhar、M.S.R. Murty
DOI:10.1016/j.tetlet.2006.06.063
日期:2006.8
Epoxides undergo cyclization with homopropargylic alcohols in the presence of zirconiumtetrachloride under mild conditions to afford the corresponding dihydropyran derivatives in excellent yields under mild conditions.