87530-21-0Relevant academic research and scientific papers
Synthesis of Naturally Occuring Pratensein and 6,8-Di-C-prenylpratensein
Jain, A. C.,Bambah, P. K.
, p. 488 - 490 (2007/10/02)
Pratensein (4a) has now been synthesized in two ways.The first route involves condensation of phloroacetophenone dibenzyl ether (1) with O-benzylisovanillin (2) and oxidative cyclization of the resulting chalcone (3) with Tl(NO3)3-MeOH followed by boiling with HCl.In the second route 2,4,6,3'-tetrahydroxy-4'-methoxydesoxybenzoin (5) is treated with DMF, CH3SO2Cl and BF3-Et2O.When pratensein is reacted with 3-hydroxy-3-methyl-1-butene in the presence of BF3-Et2O and dioxan, it gives the naturally occuring 6,8-di-C-prenylpratensein (6a).
A CHALCONE AND AN ISOFLAVONE FROM MILLETTIA PACHYCARPA SEEDS
Singhal, Ashok K.,Barua, Nabin C.,Sharma, Ram P.,Baruah, Jogendra N.
, p. 1005 - 1006 (2007/10/02)
Key Word Index - Millettia pachycarpa; Leguminosae; Lotodoideae; seeds; prenylated isoflavones; prenylated chalcone. Chemical examination of the seeds of Millettia pachycarpa has yielded a new prenylated isoflavone and a new prenylated chalcone in addition to the previously reported isoflavones 5-hydroxy-4'-methoxy-6'',6''dimethylpyrano(2'',3'',7,8)isoflavone, 5,7,4'-trihydroxy-6,8-diprenylisoflavone, 5,7,3',4'-tetrahydroxy-6,8-diprenylisoflavone and pomiferin.
