?CLAISEN REARRANGEMENT OF 2'-HYDROXY -4 -METHOXY- 4' -PRENYLOXYCHALCONE

Authors

  • AZlZUL ISLAM Department of Chemistry, University of Rajshahi, Rajshahi-6205, Bangladesh
  • M.RAAQUL ANAM Department of Chemistry, University of Rajshahi, Rajshahi-6205, Bangladesh
  • M.AMZAD HOSSAIN Department of Chemistry, University of Rajshahi, Rajshahi-6205, Bangladesh

Keywords:

Claisen rearrangement, Chalcone and derivatives.

Abstract

Claisen rearrangement of 2'-hydroxy-4-methoxy-4'-prenyloxychalcone (II) using acetic anhydride in dimethyl-
aniline gave five compounds and several other minor fractions. The five compounds isolated were viz. 2'-hydroxy-4-
methoxy-4",4",5"-trimethyldihydro furano (2",3":4',3') chalcone (III), 2'-hydroxy-4'-acetoxy-4-methoxy-3'-(a,a-di-
methylallyl)chalcone(IV),2'-hydroxy-4'-acetoxy-4-methoxy-5'-(a,a-dimethylallyl) chalcone(V),2'-acetoxy-d-rnethoxy-
4'-prenyloxychalcone (VI) and 2'-hydroxy-4'-acetoxy-4-methoxy chalcone (VII). Mild alkaline hydrolysis of Iv gave
2',4'-dihydroxy-4-methoxy-3'-(a,a-dimethylallyl) chalcone (VIII). The products have been characterized by their
spectral analysis.

Published

1994-01-24

How to Cite

ISLAM, A., ANAM, M., & HOSSAIN, M. (1994). ?CLAISEN REARRANGEMENT OF 2’-HYDROXY -4 -METHOXY- 4’ -PRENYLOXYCHALCONE. Biological Sciences - PJSIR, 37(1-2), 29–32. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/2564

Issue

Vol. 37 No. 1-2 (1994): Pakistan Journal of Scientific and Industrial Research

Section

Articles