Stereochemie der homopropargylumlagerung: Solvolyse von 1,2-dimethyl-3-pentinyltriflat
作者:Gerhard Auchter、Erich Kunzmann、Michael Hanack
DOI:10.1016/s0040-4039(00)81468-9
日期:1983.1
Erythro-1,2-dimethyl-3-pentinyl triflate (9) solvolyses in 97% 2,2,2-trifluoroethanol with formation of the 2,3,4-trimethyl-cyclobutanones 14a and 14b, but without formation of 14c, showing that a SN2-like transition state is involved even in the cyclization of secondary homopropargyl compounds.
三氟甲磺酸1,2,2-二甲基-3-戊基戊酯(9)在97%2,2,2-三氟乙醇中溶剂化,形成2,3,4-三甲基-环丁酮14a和14b,但未形成14c,表明甚至在仲炔丙基化合物的环化中也涉及到类似于S N 2的过渡态。