157919-99-8Relevant articles and documents
?-Cyclizations of α-Methoxycarbonyl Oxycarbenium Ions; Synthesis of Oxacyclic Carboxylic Esters
Lolkema, Lucie D. M.,Hiemstra, Henk,Semeyn, Cindy,Speckamp, W. Nico
, p. 7115 - 7128 (2007/10/02)
Acid-mediated cyclization reactions are described of seven methyl 2-acetoxy-2-(3-alken-1-oxy)acetates with different chain substitution.The major product of the tin tetrachloride-induced cyclization reaction is in most cases a tetrahydropyran containing a