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2005
Amination
O 0268
37- 044
Synthesis of N,N-Dialkyl-N'-arylhydrazines via Palladium-Catalyzed N-Arylation
by Using N,N-Dialkylhydrazines/2LiCl Adducts. — The one-pot reaction of
N,N-dialkylhydrazine/2LiCl adducts with aryl bromides using either Xantphos or PHO
as ligands gives higher yields of arylated hydrazines than a two-step route involving
isolation of the unstable intermediates. In some cases, diarylated products are isolated
in significant yields. — (CACCHI*, S.; FABRIZI, G.; GOGGIAMANI, A.;
LICANDRO, E.; MAIORANA, S.; PERDICCHIA, D.; Org. Lett. 7 (2005) 8,
1497-1500; Dip. Stud. Chim. Tecnol. Sostanze Biol. Attive, Univ. La Sapienza,
I-00185 Roma, Italy; Eng.) — Klein
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