Tetrahedron Letters p. 2441 - 2444 (1993)
Update date:2022-08-03
Topics:
Zaltsgendler
Leblanc
Bernstein
Electron-rich arenes react with bis(2,2,2-trichloroethyl) azodicarboxylate in 3 M lithium perchlorate-diethylether or acetone solution to produce para-substituted aryl hydrazides in high yields. The corresponding aromatic amines are readily obtained by reducing the hydrazides with zinc in acetic acid.
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