Lanthanide-Catalyst-Mediated Tandem Double Intramolecular Hydroalkoxylation/Cyclization of Dialkynyl Dialcohols: Scope and Mechanism
作者:SungYong Seo、Tobin J. Marks
DOI:10.1002/chem.200903027
日期:——
hydroalkoxylation/cyclization is first‐order in [catalyst] and zero‐order in [alkynyl alcohol], as is observed for the organolanthanide‐catalyzed hydroamination/cyclization of aminoalkenes, aminoalkynes, and aminoallenes, and the intramolecular single‐step hydroalkoxylation/cyclization of alkynyl alcohols. An ROH/ROD kinetic isotope effect of 0.82(0.02) is observed for the tandem double hydroalkoxylation/cyclization