Michael Addition Catalyzed by a New Effective Catalyst of Y(OTf)

化学工业与工程

Chemcial Industry and Engineering

2008, Vol. 25

Issue (3) :237-241 DOI:

Article

Current Issue | Next Issue | Archive | Adv Search

<< | >>

Michael Addition Catalyzed by a New Effective Catalyst of Y(OTf)_3

GAO Chang-shui~(1,2),SUN Liang-dong~2,LI Zhi~2,DONG Min~2(1.Tianjin Modern Vocational Technology College,Tianjin 300222,China;2.School of Sciences,Tianjin University,Tianjin 300072,China)

(1,2),SUN Liang-dong~2,LI Zhi~2,DONG Min~2(1.Tianjin Modern Vocational Technology College,Tianjin 300222,China;2.School of Sciences,Tianjin University,Tianjin 300072,China

Abstract	Reference	Related Articles

Download: PDF (215KB) HTML 1KB Export: BibTeX or EndNote (RIS) Supporting Info

Abstract The Michael addition of indoles or furan with ��,��-unsaturated ketones catalyzed by Y(OTf)_3 was proposed to synthesize the corresponding derivatives.This method was easy to operate under mild conditions and with high yield.The catalyst Y(OTf)_3 was reuseable and was considered as environmentally friendly catalyst.

	Service

	Email this article
	Add to my bookshelf
	Add to citation manager
	Email Alert
	RSS
	Articles by authors

Keywords��

Received 2008-05-15; published 2008-05-15

Cite this article:

GAO Chang-shui~.Michael Addition Catalyzed by a New Effective Catalyst of Y(OTf)_3[J] Chemcial Industry and Engineering, 2008,V25(3): 237-241

[1]	NEETA S,BIMAL K B.Bismuth nitrate-catalyzed versatileMichael reactions[J].J Org Chem,2003,68:2 109-2 114.
[2]	MARCO C,SERGIO C,FABRIZIO F,et al.2,5-disubstituted furans from acid catalyzed addition of��,��-enones to furanApplications to the synthesis of C2-symmetric compounds[J]..Synthetic Communications.1996,26(4):637-647
[3]	MART N A,REYES B,JOS L,et al.Clay-catalyzedsolventless addition reactions of furan with��,-��unsaturatedcarbonyl compounds[J].Tetrahedron Letters,1998,50(39):9 301-9 305.
[4]	BARTOLI G,BARTOLACCI M,BOSCO M,et al.TheMichael addition of indoles to��,-��unsaturated ketonescatalyzed by CeCl3.7H2O-NaI combination supported onsilica gel[J].J Org Chem,2003,68(11):4 594-4 697.
[5]	YADAV J S,SUNNY A,REDDY B V S,et al.InCl3-catalysed conjugate addition of indoles with electron-deficient olefins[J].Synthesis,2001,14:2 165-2 167.
[6]	YADAV J S,REDDY B V,GAKUL B,et al.Copper(��)triflate immobilized in[bmim]BF4ionic liquid:An efficientreaction medium for Michael addition of-��ketoesters toacceptor-activated alkenes[J].Chemistry Letters.2005,34(1):102-105
[7]	YADAV J S,REDDY B V S,BAISHYA G.Green protocolfor conjugate addition of thiols to��,-��unsaturated ketonesusing a[Bmim]PF6/H2O system[J].J Org Chem,2003,68(18):7 098-7 101.
[8]	��,ʢ��,��,��.��ܼ��Yb(OTf)3�߻��Ǽ׻��ȩ��Knoevenagel��Ӧ[J].�л��ѧ,2005,25(8):964-967.
[9]	LIMIN W,CHANGTAO Q,HE T,et al.Lanthanidetriflate catalyzed one-pot synthesis of dihydropyrimidin-2(1H)-thiones by a three-component of 1,3-dicarbonylcompounds,aldehydes,and thiourea using a solvent-freebiginelli condensation[J].Synthetic Communication.2003,33(9):1-
[10]	JACK M H,DAVID L K,JENNIFER M P,et al.Structureand stereochemistry in��f-Block��complexes of highcoordination number��.The[M(unidetate)9]system.crystal structures of[M(OH2)9][CF3SO3]3,M=La,Gd,Lu,Y[J]..Aust J Chem.1983,36:483-486
[11]	MUJAHID M A,RAVI V,SRINIVAS R A.Conjugateaddition of indoles and thiols with electron-deficient olefinscatalyzed by Bi(OTf)3[J].Tetrahedron Letters,2003,44:5 115-5 118.
[12]	BERNARD G,ADYL O.La reaction de diels-aldercatalysee par les sels de bismuth(��)[J].Journal ofOrganometallic Chemistry.1999,585:253-258
[13]	PAUL H,MICHAEL A K.The ultra high pressureconjugate addition of indoles to electron-deficient olefins[J].Can J Chem.1998,76:1-
[14]	KOMOTO I,KOBAYASHI S.Lewis acid catalysis insupercritical carbon dioxide.Use of poly(ethylene glycol)derivatives and perfluoroalkylbenzenes as surfactantmolecules which enable efficient catalysis in ScCO2[J].JOrg Chem,2004,69(3):680-683.