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Synthesis 2010(23): 3977-3979
DOI: 10.1055/s-0030-1258285
DOI: 10.1055/s-0030-1258285
SHORTPAPER
© Georg Thieme Verlag
Stuttgart ˙ New York
DABCO-Catalyzed Reaction of 2,6-Disubstituted 6-Hydroxy-2H-pyran-3(6H)-ones to 1,2,5-Triketones
Further Information
Received
2 July 2010
Publication Date:
05 October 2010 (online)
Publication History
Publication Date:
05 October 2010 (online)
Abstract
The DABCO-catalyzed isomerization/redox rearrangement readily converts 2,6-dialkyl-6-hydroxy-2H-pyran-3(6H)-ones into 1,2,5-triketones.
Key words
furans - ketones - oxidation - isomerization - catalysis
- 1
Merino P.Tejero T.Delso JI.Matute R. Curr. Org. Chem. 2007, 11: 1076 - 2
Achmatowicz O.Bukowski P.Szechner B.Zwierzchowska Z.Zamjoski AJ. Tetrahedron 1971, 27: 1973 - 3
Martin SF.Lee W.Pacofsky GJ.Gist RP.Mulhern TA. J. Am. Chem. Soc. 1994, 116: 4674 - 4
Nicolaou KC.Kang Q.Ng SY.Chen DY. J. Am. Chem. Soc. 2010, 132: 8219 -
5a
Guo H.O’Doherty GA. J. Org. Chem. 2008, 73: 5211 -
5b See also:
Balachari D.O’Doherty GA. Org. Lett. 2000, 2: 4033 - 6
Sekita S.Yoshihira K.Natori S.Kuwano H. Chem. Pharm. Bull. 1982, 30: 1629 - 7 For the synthesis of 1,2-diketones,
see:
Kashiwabara T.Tanaka M. J. Org. Chem. 2009, 74: 3958 ; and references cited therein -
8a
Ishihara J.Ishizaka T.Suzuki T.Hatakeyama S. Tetrahedron Lett. 2004, 45: 7855 -
8b
Ishihara J.Tojo S.Kamikawa A.Murai A. Chem. Commun. 2001, 1392 -
8c
Ishihara J.Sugimoto T.Murai A. Synlett 1998, 603 -
8d
Sugimoto T.Ishihara J.Murai A. Tetrahedron Lett. 1997, 38: 7379 - 9
Trost BM.Livingston RC. J. Am. Chem. Soc. 2008, 130: 11970 - For the synthesis of the starting pyranones, see:
-
10a
Kuo Y.Shih K. Heterocycles 1990, 31: 1941 -
10b
Costa JS.Lima ELS.MPallatinos MA.Correia CRD. J. Braz. Chem. Soc. 1994, 5: 113; Chem. Abstr. 1995, 122, 105558 -
10c
De Mico A.Margarita R.Piancatelli G. Gazz. Chim. Ital. 1995, 125: 325 - 11
Pitacco G.Pizzioli A.Valentin E. Synthesis 1996, 242 - 12
Bestmann HJ.Groß A. Tetrahedron Lett. 1997, 38: 4765