An Isomeric Swapping of a Phenylhydrazone Derivative Discovered by Structural Study Revealing a Bran

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In an attempt to synthesize an indole derivative,methyl 5-nitro-1H-indole-2-carb-oxylate,an isomeric change of methyl 2-[2-(4-nitrophenyl) hydrazono] propanoate from E to Z geometry was observed.The two isomers were determined by single-crystal X-ray diff
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