SYNTHESIS OF 3-AMINO-(N-ARYL SUBSTITUTED)-6-BROMO-2H-1-BENZOPYRAN-2-ONES AND 6-BROMO-3-PHENOXY SUBSTITUTED-2H-1-BENZOPYRAN-2-ONES AS POTENTIAL ANTITUBERCULAR AGENTS .1.
As. Gupta et al., SYNTHESIS OF 3-AMINO-(N-ARYL SUBSTITUTED)-6-BROMO-2H-1-BENZOPYRAN-2-ONES AND 6-BROMO-3-PHENOXY SUBSTITUTED-2H-1-BENZOPYRAN-2-ONES AS POTENTIAL ANTITUBERCULAR AGENTS .1., Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 35(2), 1996, pp. 170-171
Various 6-bromo-3-amino-(N-aryl snbstituted)-2H-1-benzopyran-2-ones (4
a-1) and 6-bromo-3-phenoxy substituted-2H-1-benzopyran-2-ones (5a-m) h
ave been synthesised by novel one step method which involves condensat
ion of 5-bromo-salicylaldehyde (1) with Na-salt of substituted N-aryl
glycine (2)-and Na-salt of substituted phenoxy acetic acid(3) respecti
vely.