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Synthesis 2008(20): 3245-3252
DOI: 10.1055/s-0028-1083150
DOI: 10.1055/s-0028-1083150
PAPER
© Georg Thieme Verlag
Stuttgart ˙ New York
Baylis-Hillman Reactions of 2-(Trifluoroacetyl)-1,3-azoles
Further Information
Received
8 May 2008
Publication Date:
25 September 2008 (online)
Publication History
Publication Date:
25 September 2008 (online)
Abstract
2-(Trifluoroacetyl)-1,3-azoles readily react with methyl acrylate and acrylonitrile under Baylis-Hillman reaction conditions to afford heterocyclic trifluoromethyl-containing allylic alcohols in 36-97% yields. The thus obtained Baylis-Hillman adducts readily undergo Michael addition reactions with various nucleophiles.
Key words
Baylis-Hillman reaction - 1,3-azoles - Michael additions - trifluoromethyl substituted - allylic alcohols
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1a
Basavaiah D.Venkateswara Rao K.Reddy RJ. Chem. Soc. Rev. 2007, 36: 1581 -
1b
Basavaiah D.Jaganmohan Rao A.Satyanarayana T. Chem. Rev. 2003, 103: 811 -
2a CF3 Ketones:
Golubev AS.Kolomiets AF.Fokin AV. J. Fluorine Chem. 1991, 54: , 272 -
2b Isatins, ninhydrin:
Chung YM.Im YJ.Kim JN. Bull. Korean Chem. Soc. 2002, 23: 1651 - 3 Common ketones:
Hill JS.Isaacs NS. Tetrahedron Lett. 1986, 27: 5007. - 4
Khodakovskiy PV.Volochnyuk DM.Panov DM.Pervak II.Zarudnitskii EV.Shishkin OV.Yurchenko AA.Shivanyuk A.Tolmachev AA. Synthesis 2008, 948 - 5 For analogous transformation of BH
products see:
Batra S.Roy AK.Patra A.Bhaduri AP.Surin WR.Raghavan SAV.Sharma P.Kapoor K.Dikshit M. Bioorg. Med. Chem. 2004, 12: 2059
References
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