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AminesQ 0120 DOI: 10.1002/chin.201103064

Highly Chemo- and Regioselective Reduction of Aromatic Nitro Compounds Catalyzed by Recyclable Copper(II) as well as Cobalt(II) Phthalocyanines. — Both phthalocyanine complexes give comparable yields of the resulting amines using hydrazine hydrate as hydrogen source. Under the optimized conditions, functional groups such as halogen, acid, amide, nitrile, keto, and heterocyclic remain intact. Al-dehyde (VI) affords the corresponding hydrazone. Dinitro compounds are regioselec-tively reduced. In the case of m-nitrostyrene, the two catalysts give different results. By use of the copper complex, only 20% selectivity is achieved for amine (XIII). — (SHARMA, U.; KUMAR, P.; KUMAR*, N.; KUMAR, V.; SINGH, B.; Adv. Synth. Catal. 352 (2010) 11-12, 1834-1840, http://dx.doi.org/10.1002/adsc.201000191 ; Inst. Himalayan Bioresour. Technol., Palampur 176 061, India; Eng.) — Klein

03- 064

ChemInform 2011, 42, issue 03 © 2011 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

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ChemInform 2011, 42, issue 03 © 2011 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim