April 1997 - 11 articles
Methyl 6H-furo[2,3-b]pyrrole-5-carboxylate (2a) was prepared by thermolysis of the corresponding methyl 2-azido-3-(3-furyl)propenoate (1). 6-Methyl (2b) and 6-benzyl (2c) derivatives were obtained using phase-transfer catalysis conditions (PTC). The...
The general part of the experimental section [1] has been presented elsewhere.[...]
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A mixture of N-(3,4-dichlorophenyl)methyl oxamic acid ethyl ester [1] (7.609 g, 27.56 mmol), ethanol (400 ml), NaOH (1N, 32 ml) and water (200ml) was stirred at r.t. overnight under N2.[...]
The diester 2 was prepared by the addition of 2-methoxyethanol to 1 according to the reported procedure [1].[...]
The diester 2 was prepared by the addition of propanol to 1 according to the reported procedure [1] [...]
The diester 2 was prepared by the addition of iso-propanol to 1 according to the reported procedure [1].[...]
The diester 2 was prepared by the addition of tert-butanol to 1 according to the reported procedure [1].[...]
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The compound 2 was prepared by the addition of propanol to 1 according to the reported procedure [1].[...]
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