Transannular Diels-Alder reaction studies with an activated dienophile. An enantioselective synthesis of an A.B.C.[6.6.6] trans-syn-cis tricycle
摘要:
The synthesis and transannular Diels-Alder reaction of a chiral 14 membered trans-cis-cis (TCC) macrocyclic triene with an activated dienophile leading to an A.B.C.[6.6.6.] tricyclic compound are described. The outcome of the TADA reaction under thermal and catalyzed conditions is discussed. (C) 1997 Elsevier Science Ltd.
Transannular Diels-Alder reaction studies with an activated dienophile. An enantioselective synthesis of an A.B.C.[6.6.6] trans-syn-cis tricycle
摘要:
The synthesis and transannular Diels-Alder reaction of a chiral 14 membered trans-cis-cis (TCC) macrocyclic triene with an activated dienophile leading to an A.B.C.[6.6.6.] tricyclic compound are described. The outcome of the TADA reaction under thermal and catalyzed conditions is discussed. (C) 1997 Elsevier Science Ltd.
Reactivity and Selectivity in the Intermolecular Alder–Ene Reactions of Arynes with Functionalized Alkenes
作者:Saswata Gupta、Peipei Xie、Yuanzhi Xia、Daesung Lee
DOI:10.1021/acs.orglett.7b02438
日期:2017.10.6
functionalized alkenes in intermolecular Alder–ene reactions with arynes is described. The arynes generated from bis-1,3-diynes react with various trisubstituted and 1,1-disubstituted alkenes containing hydroxyl, amino, halo, carboxyl, boronate, and 1,3-dienyl functionalities, providing product distributions with varying degrees of selectivity between Alder–ene and addition reactions. The geometry of