Abstract
An efficient synthesis of some new aroyl[bis(4-hydroxycoumarin-3-yl)]methanes (dicoumarols) based on the reaction of 4-hydroxycoumarin with arylglyoxals is described. The reactions were efficiently catalysed by tungstate sulfuric acid to afford the product in moderate to good yields (up to 65%).
References
1.
Boeck F.
,
Blazejak M.
,
Anneser M.R.
, and
Hintermann L.
, Beilstein J. Org. Chem. , 2012 , 8 , 1630 .
2.
Barzegar A.
,
Davari M.D.
,
Chaparzadeh N.
,
Zarghami N.
,
Pedersen J.Z.
,
Incerpi S.
,
Saso L.
, and
Moosavi-Movahedi A.A.
, J. Iran. Chem. Soc. , 2011 , 8 , 973 .
3.
Eleya N.
,
Khaddour Z.
,
Patonay T.
, and
Langer P.
, Synlett , 2012 , 23 , 223 .
4.
Link K.P.
, J. Biol. Chem. , 1941 , 138 , 21 .
5.
Karimi-Jaberi Z.
, and
Zarei L.
, Acta Chim Slov. , 2013 , 60 , 178 .
6.
Cherkupally S.R.
, and
Mekala R.
, Chem. Pharm. Bull. , 2008 , 56 , 1732 .
7.
Bellis D.M.
,
Spring M.S.
, and
Stokerb J.R.
, Biochem. J. , 1967 , 103 , 202 .
8.
Khodabakhshi S.
, and
Baghernejad M.
, Iran. J. Catal. , 2013 , 3 , 67 .
9.
Kolos N.N.
,
Gozalishvili L.L.
, and
Yaremenko F.G.
, Russ. Chem. Bull. , 2007 , 56 , 2277 .
10.
Ziarani G.M.
, and
Hajiabbasi P.
, Heterocycles , 2013 , 87 , 1415 .
11.
Khalafi-Nezhad A.
, and
Panahi F.
, Green Chem. , 2011 , 13 , 2408 .
12.
Chanda A.
, and
Fokin V.V.
, Chem. Rev. , 2009 , 109 , 725 .
13.
Karami B.
,
Khodabakhshi S.
, and
Nikrooz M.
, Polycyclic Aromat. Compd , 2011 , 3 , 197 .
14.
Khodabakhshi S.
, and
Karami B.
, Catal. Sci. Technol. , 2012 , 2 , 1940 .