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A New Synthesis of 3,4-Dichlorocoumarins 1

โœ Scribed by Newman, Melvin S.; Schiff, Sidney


Book ID
127196744
Publisher
American Chemical Society
Year
1959
Tongue
English
Weight
636 KB
Volume
81
Category
Article
ISSN
0002-7863

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One-step conversion of 3,4-dichlorocouma
โœ Melvin S. Newman; John L. Ferrari ๐Ÿ“‚ Article ๐Ÿ“… 1962 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 110 KB

ON treatment with phenylmagnesium bromide the 3,4-dichlorocoumarins,' I, are converted into the corresponding 3-chlorofle,ones, II. This is apparently the first instance of a one-step conversion of the coumarin system into the flavone system. 2 In previous studies involving treatment of coumarins wi