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2004
Amines
Q 0810
50- 061
Acid-Catalyzed Rearrangement of Diaryl Hydrazides for the Efficient Synthesis
of Functionalized 2,2'-Diamino-1,1'-biaryls. — The mildness of the present rearrangement reaction allows the presence of various functional groups at the aryl moieties
of the hydrazides. The latter are derived from coupling reactions of N-Boc-N-naphthylhydrazine with aryl halides. C2-Symmetric diamino binaphthyls can be more conveniently prepared via coupling of naphthyl bromides with bishydrazide (VI), followed
by the rearrangement reaction. — (LIM, Y.-K.; JUNG, J.-W.; LEE, H.; CHO*, C.-G.;
J. Org. Chem. 69 (2004) 17, 5778-5781; Dep. Chem., Hanyang Univ., Seoul 133-791,
S. Korea; Eng.) — Klein
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