Alkene and enyne metathesis reactions on allylic and propargylic amines
摘要:
Treatment of cis-4,5-diaminocyclohexene derivatives bearing allyl or propargyl groups on the nitrogen atoms, with first or second generation Grubbs metathesis catalysts, results in initiation of metathesis cascades which include ring-opening of the unstrained cyclohexene ring. This contrasts with the previous work on the analogous cyclohexene ethers where metathesis reactions occurred exclusively between the side-chains and no ring-opening of the cyclohexene unit was observed. (c) 2007 Elsevier Ltd. All rights reserved.
Alkene and enyne metathesis reactions on allylic and propargylic amines
摘要:
Treatment of cis-4,5-diaminocyclohexene derivatives bearing allyl or propargyl groups on the nitrogen atoms, with first or second generation Grubbs metathesis catalysts, results in initiation of metathesis cascades which include ring-opening of the unstrained cyclohexene ring. This contrasts with the previous work on the analogous cyclohexene ethers where metathesis reactions occurred exclusively between the side-chains and no ring-opening of the cyclohexene unit was observed. (c) 2007 Elsevier Ltd. All rights reserved.
Synthesis of N-heterocyclic compounds via ene–yne metathesis reactions
作者:Elisabetta Groaz、Donatella Banti、Michael North
DOI:10.1016/j.tet.2007.10.076
日期:2008.1
Propargylamino and allylamino derivatives of cyclohexene and norbornene were subjected to tandem metathesis reactions with first and second generation Grubbs' catalysts 1 and 2. Results show that the method is compatible with suitably protected nitrogen-containing compounds. Cyclohexenes gave intriguing results in terms of the possibility to perform ring rearrangement metathesis (RRM) reactions, showing a difference with the analogous allyl and propargyl ether substrates. (c) 2007 Elsevier Ltd. All rights reserved.
Alkene and enyne metathesis reactions on allylic and propargylic amines
作者:Elisabetta Groaz、Donatella Banti、Michael North
DOI:10.1016/j.tetlet.2007.01.092
日期:2007.3
Treatment of cis-4,5-diaminocyclohexene derivatives bearing allyl or propargyl groups on the nitrogen atoms, with first or second generation Grubbs metathesis catalysts, results in initiation of metathesis cascades which include ring-opening of the unstrained cyclohexene ring. This contrasts with the previous work on the analogous cyclohexene ethers where metathesis reactions occurred exclusively between the side-chains and no ring-opening of the cyclohexene unit was observed. (c) 2007 Elsevier Ltd. All rights reserved.