Generation of Cations from Alkoxides: Allylation of Propargyl Alcohols
摘要:
The reaction of alkoxides with boron trichloride results in the generation of cations in the absence of Brønsted acids. The absence of a Brønsted acid can make a difference in subsequent transformations such as allylation reactions.
Relay Redox and Lewis Acid Catalysis in the Titanocene- Catalyzed Multicomponent Assembly of 1,5-Enynes
作者:Antonio J. Lepore、David M. Pinkerton、Brandon L. Ashfeld
DOI:10.1002/adsc.201300359
日期:2013.5.17
Herein we describe a direct, multicomponentassembly of 1,5‐enynes. The titanocene‐catalyzed coupling of an aryl aldehyde, iodoalkyne, and allylsilane enables the convergent and rapid synthesis of this versatile architectural motif in good to excellent yields.
Generation of Cations from Alkoxides: Allylation of Propargyl Alcohols
作者:George W. Kabalka、Min-Liang Yao、Scott Borella
DOI:10.1021/ja061379d
日期:2006.9.1
The reaction of alkoxides with boron trichloride results in the generation of cations in the absence of Brønsted acids. The absence of a Brønsted acid can make a difference in subsequent transformations such as allylation reactions.