197152-95-7Relevant academic research and scientific papers
Studies on Sigmatropic Rearrangements: Thermal Rearrangement of 3-(meta-Substituted Aryloxymethyl) Coumarins
Majumdar,Jana,Ghosh,Saha
, p. 641 - 650 (2007/10/03)
At elevated temperatures, the 3-(meta-substituted aryloxymethyl) coumarins 3a-e and 3g-k undergo sigmatropic rearrangements to give the hydroxylated 3-benzylcoumarins 4a-e and 4g-k. Upon methylation and subsequent oxidation with N-bromo succinimide, the 3-(chlorosubstituted benzyl) coumarins 4a, 4m and 4n afford 3-(chlorosubstituted benzoyl) coumarins 8a, 8m, and 8n.
