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|Title:||Selective methylation of coumarins and naphthoquinones using dimethyl sulfoxide|
|Authors:||Thapliyal, Prakash Chander|
|Abstract:||On UV irradiation, coumarins 1-6 and 1,4-naphthoquinones 7-11 with dimethyl sulfoxide in tertiary butyl alcohol under nitrogen atmosphere give corresponding 4-methylcoumarins 12-17 and 2- methyl-1,4-naphthoquinones 18-22 selectively in a single step facile reaction with good yields.|
|Appears in Collections:||IJC-B Vol.38B(06) [June 1999]|
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