Unsaturated Nitriles: Precursors for a Domino Ozonolysis−Aldol Synthesis of Oxonitriles
作者:Fraser F. Fleming、Adrian Huang、Vaqar A. Sharief、Yifang Pu
DOI:10.1021/jo9822885
日期:1999.4.1
five-membered oxonitriles 22a-c are prepared by analogous ozonolysis-aldol cyclizations employing omega-alkenyl beta-ketonitriles. The method tolerates various substitution patterns and allows for the synthesis of beta,beta-disubstituted oxonitriles (22c). The reaction conditions are essentially neutral providing the beta-hydroxyoxonitriles 22d and 22e with only trace amounts of the aromatic dehydration
METHYLBUTOXY-PROPIONITRILES AND THEIR USE AS PERFUMES
申请人:QUEST INTERNATIONAL B.V.
公开号:EP0673364A1
公开(公告)日:1995-09-27
[EN] METHYLBUTOXY-PROPIONITRILES AND THEIR USE AS PERFUMES<br/>[FR] METHYLBUTOXY-PROPIONITRILES ET UTILISATION DE CES DERNIERS COMME PARFUMS
申请人:——
公开号:WO1994013626A1
公开(公告)日:1994-06-23
[EN] The invention relates to 3-(2-methylbut-1-oxy)-2-methylpropionitrile and 3-(3-methylbut-1-oxy)-2-methylpropionitrile, to perfumes containing these compounds and to process for perfuming products wherein these compounds are added to the product. [FR] Cette invention concerne du 3-(2-méthylbut-1-oxy)-2-méthyl-propionitrile et du 3-(3-méthylbut-1-oxy)-2-méthylpropionitrile, des parfums contenant ces composés et un procédé permettant de parfumer des produits selon lequel on ajoute ces composés dans le produit.
Stereocontrolled Radical Bicyclizations of Oxygenated Precursors Enable Short Syntheses of Oxidized Abietane Diterpenoids
作者:Darius Vrubliauskas、Benjamin M. Gross、Christopher D. Vanderwal
DOI:10.1021/jacs.0c13300
日期:2021.2.24
in these complexity-generating transformations. Specifically, we show the effects of protected or unprotected hydroxy groups at six different positions and their impact on stereoselectivity. Further, we show how multiply oxidized substrates perform in these reactions, and finally, we document the utility of these reactions in the synthesis of three aromatic abietane diterpenoids.