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Bromination of 3‐Aryl‐4‐acetylsydnones with Potassium Bromide and Sulfuric Acid
Author(s) -
Tien HsienJu,
Lin ShawTao,
Ong Geok Ton
Publication year - 1994
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199400113
Subject(s) - chemistry , halogenation , potassium bromide , sulfuric acid , aryl , bromide , alkali metal , potassium , medicinal chemistry , organic chemistry , inorganic chemistry , alkyl
Bromination of 3‐aryl‐4‐acetylsydnones with alkali bromide and sulfuric acid yielded 3‐aryl‐4‐dibromoacetylsydnones (R=H, Me, C1, NO 2 ) and 3‐(3‐bromoaryl)‐4‐dibromoacetyIsydnones (R=OH, OMe, OEt) in good yields. The resultant dibromoacetylsydnones were converted to the corresponding 3‐arylsydnones with alcoholic NaOH solution.