Organocatalytic Iminium Ion/Carbene Reaction Cascade for the Formation of Optically Active 2,4-Disubstituted Cyclopentenones
作者:Christian Borch Jacobsen、Kim L. Jensen、Jonas Udmark、Karl Anker Jørgensen
DOI:10.1021/ol2018104
日期:2011.9.16
An organocatalytic iminium ion/N-heterocyclic carbene (NHC) cascade reaction between β-keto phenyltetrazolesulfones and α,β-unsaturated aldehydes, providing direct access to opticallyactive 2,4-disubstituted cyclopent-2-enones, has been developed. The products are isolated in good yields with high enantioselectivities.
[EN] FRAGRANCE AND FLAVOR COMPOSITIONS CONTAINING ISOMERIC ALKADIENALS OR ISOMERIC ALKADIENENITRILES<br/>[FR] COMPOSITION AROMATISÉE OU PARFUMÉE CONTENANT DES ALCADIÉNALS ISOMÈRES OU DES ALCADIÈNENITRILES ISOMÈRES
申请人:BEDOUKIAN RES INC
公开号:WO2017100426A1
公开(公告)日:2017-06-15
A composition containing at least one isomeric alkadienal or at least one isomeric alkadienenitrile in an amount effective to impart a fragrance or flavor to the composition. A fragrance or flavor composition containing at least one isomeric alkadienal or at least one isomeric alkadienenitrile in an amount effective to impart a fragrance or flavor to the composition. A consumer product containing the fragrance or flavor composition having at least one isomeric alkadienal or at least one isomeric alkadienenitrile in an amount effective to impart a fragrance or flavor to the composition. A method of imparting a fragrance or flavor to a consumer product by adding to the consumer product a fragrance or flavor composition containing at least one isomeric alkadienal or at least one isomeric alkadienenitrile in an amount effective to impart a fragrance or flavor to the consumer product.
Fragrance and flavor compositions containing isomeric alkadienals or isomeric alkadienenitriles
申请人:BEDOUKIAN RESEARCH, INC.
公开号:US10035972B2
公开(公告)日:2018-07-31
A composition containing at least one isomeric alkadienal or at least one isomeric alkadienenitrile in an amount effective to impart a fragrance or flavor to the composition. A fragrance or flavor composition containing at least one isomeric alkadienal or at least one isomeric alkadienenitrile in an amount effective to impart a fragrance or flavor to the composition. A consumer product containing the fragrance or flavor composition having at least one isomeric alkadienal or at least one isomeric alkadienenitrile in an amount effective to impart a fragrance or flavor to the composition. A method of imparting a fragrance or flavor to a consumer product by adding to the consumer product a fragrance or flavor composition containing at least one isomeric alkadienal or at least one isomeric alkadienenitrile in an amount effective to impart a fragrance or flavor to the consumer product.
FRAGRANCE AND FLAVOR COMPOSITIONS CONTAINING ISOMERIC ALKADIENALS OR ISOMERIC ALKADIENENITRILES
申请人:BEDOUKIAN RESEARCH, INC.
公开号:US20170166836A1
公开(公告)日:2017-06-15
A composition containing at least one isomeric alkadienal or at least one isomeric alkadienenitrile in an amount effective to impart a fragrance or flavor to the composition. A fragrance or flavor composition containing at least one isomeric alkadienal or at least one isomeric alkadienenitrile in an amount effective to impart a fragrance or flavor to the composition. A consumer product containing the fragrance or flavor composition having at least one isomeric alkadienal or at least one isomeric alkadienenitrile in an amount effective to impart a fragrance or flavor to the composition. A method of imparting a fragrance or flavor to a consumer product by adding to the consumer product a fragrance or flavor composition containing at least one isomeric alkadienal or at least one isomeric alkadienenitrile in an amount effective to impart a fragrance or flavor to the consumer product.
An Asymmetric Organocatalytic One-Pot Strategy to Octahydroacridines
作者:Gustav Dickmeiss、Kim L. Jensen、Dennis Worgull、Patrick T. Franke、Karl Anker Jørgensen
DOI:10.1002/anie.201006608
日期:2011.2.11
An elegant sequence: An efficient method for the formation of octahydroacridines provides high yields and a high level of stereogenic control, and displays great tolerance towards different aldehydes, anilines, and nucleophiles (see scheme; TMS=trimethylsilyl; EWG=electron‐withdrawing group). The use of different nucleophiles verifies an endo transition state in which π–π overlap of the aromatic rings