Crystal structure of 4-(4-Bromo-phenoxymethyl)-5, 7-dimethyl-chromen-2-one (C18 H15 Br O3)
Ramakrishna Gowda, Dr. K. V. Arjuna Gowda
Bromo, Dimethyl, crystal x-ray study, Molecular Packing and hydrogen bonding
4-Phenoxymethylcoumarin was reported by by the reaction of 4-bromomethylcoumarin with phenol. Compound was subjected to the Claisen rearrangement at high temperature, which gave negative results Subsequently a number of 4-aryloxymethylcoumarins were synthesised as possible anti-microbial agents Introduction of biocompatible fragments like vanillin and paracetamol resulted in novel 4-aryloxymethylcoumarins and which exhibited anti-inflammatory, analgesic and interesting photophysical properties also. The first report on the X-ray diffraction studies on 4-aryloxymethylcoumarins has revealed that the molecules exist as head-tail dimers in solid state as observed in the case of 7-methyl-4-tolyloxymethylcoumarin In the light of above observations following 4-aryloxymethylcoumarins possessing chloro/bromo substituents have been subjected to X-ray diffraction studies.
Article Details
Unique Paper ID: 152611

Publication Volume & Issue: Volume 7, Issue 4

Page(s): 383 - 386
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