Novel Selectivity in Carbohydrate Reactions, IV: DABCO-Mediated Regioselective Primary Hydroxyl Protection of Carbohydrates
作者:Bharat Kacheshwar Gadakh、Premanand Ramrao Patil、Satish Malik、K. P. Ravindranathan Kartha
DOI:10.1080/00397910802656067
日期:2009.6.9
Abstract An efficient procedure for the regioselective tritylation of primaryhydroxylgroup of aldohexopyranosides and nucleosides using trityl chloride in the presence of 1,4-diazabicyclo[2.2.2]octane (DABCO) in dichloromethane has been developed. Subsequent acetylation of the tritylated products in the same pot has been made possible, thereby providing an efficient route to the fully protected carbohydrate