Stereoselective Syntheses of Spicy Components in Peppers
摘要:
The syntheses of (E)-alpha,beta-unsaturated amides were accomplished from chloroacetamides and alkyl halides via beta-elimination of the pyrazinyl-sulfinyl group, and some of the products are spicy components of piperaceous plants.
Polyethyleneimine-Supported Triphenylphosphine and Its Use as a Highly Loaded Bifunctional Polymeric Reagent in Chromatography-Free One-Pot Wittig Reactions
作者:Patrick Toy、Xuanshu Xia
DOI:10.1055/s-0034-1380810
日期:——
rted triphenylphosphine reagent has been synthesized and used as a highly loaded bifunctional homogeneous reagent in a range of one-potWittigreactions that afforded high yields of the desired products after simple purification procedures. The approach also served efficiently in tandem reaction sequences involving a one-potWittigreaction followed by conjugate reduction of the newly formed alkene