Abstract
An efficient and “green” catalytic conversion of 2'-hydroxychalcones to flavanones in 15 min in the presence of a simple amino acid and a base at room temperature is reported. Liquiritigenin was also efficiently synthesised under these conditions.
References
1.
Shimokororiyama M.
, The chemistry of flavonoid compounds , ed.
Geissman T.A.
, Pergamon , NewYork , 1962 , p 286 .
2.
Menezes J.C.J.M.D.S.
,
Kirtany J.K.
, and
Kamat S.P.
, J. Chem. Res. , 2010 , 28 .
3.
Chen Z.
,
Yang Y.
, and
Su W.
, J. Chem. Res. , 2010 , 661 .
4.
Brennan C.M.
,
Hunt I.
,
Jarvis T.C.
,
Johnson C.D.
, and
McDonnell P.D.
, Can. J. Chem. , 1990 , 68 , 1780 .
5.
Tanaka K.
, and
Sugino T.
, Green Chem. , 2001 , 3 , 133 .
6.
Goud B.S.
,
Panneerselvam K.
,
Zacharias D.E.
, and
Desiraju G.R.
, J. Chem. Soc., Perkin Trans. , 1995 , 2 , 325 .
7.
Sanicanin Z.
, and
Tabakovic I.
, Tetrahedron Lett. , 1986 , 27 , 407 .
8.
Maki Y.
,
Shimada K.
,
Sako M.
, and
Hirota K.
, Tetrahedron , 1988 , 44 , 3187 .
9.
Kumar D.
,
Patel G.
,
Kumar A.
,
Roy R.K.
, J. Heterocyclic Chem. , 2009 , 46 , 791 .
10.
Deodhar M.
,
Black D.S.
, and
Kumar N.
, Tetrahedron , 2007 , 63 , 5227 .
11.
Obniska J.
,
Kaminski K.
,
Skrzynska D.
, and
Pichor J.
, Eur. J. Med. Chem. , 2009 , 44 , 2224 .
12.
Ding Y.
,
Yang G.F.
, Chin. J. Appl. Chem. , 2001 , 18 , 785 .
13.
Kumar K.H.
,
Perumal P.T.
, Can. J. Chem. , 2006 , 84 , 1079 .
14.
Imafuku K.
,
Honda M.
,
McOmie J.F.W.
, Synthesis , 1987 , 199 .