Studies of 7-hydroxycoumarins.
Spectral studies of a series of 7-hydroxycoumarins substituted at positions 3 and 4 with methyl and phenyl groups are reported. Rates of ring opening in 0.7M potassium hydroxide at 25.5 degrees have been determined fluorometrically, and rate constants and half-lives are reported.
Huitink
G M
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Department of Chemistry, Indiana University at South Bend, South Bend, IN 46634, U.S.A.