MCM-silylamine Pd(II)complex: A heterogeneous catalyst for selective azide reductions

Synlett

Volumn , Issue 9, 1999, Pages 1413-1414

  Kantam, M Lakshmi ^a   Chowdari, N Srcenivasa ^a   Rahman, Ateeq ^a   Choudary, B M ^a  

^a INDIAN INSTITUTE OF CHEMICAL TECHNOLOGY   (India)

Author keywords

Amines; Azides; MCM 41; Palladium complex; Reduction

Indexed keywords

AZIDE; PALLADIUM; SILYLAMINE; UNCLASSIFIED DRUG;

AMINO ACID SEQUENCE; ARTICLE; CATALYSIS; CATALYST; EFFLUENT; HALOGENATION; HYDROGENATION; INFRARED RADIATION; PROTON NUCLEAR MAGNETIC RESONANCE; SYNTHESIS;

EID: 0032866037     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-1999-2846     Document Type: Article

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20. Typical procedure for azide reductions: The catalyst (25 mg, 0.0046 mmol of Pd) was suspended in dry methanol (2ml) and treated with molecular hydrogen for 20 min and then a solution of 3,4,5-trimethoxy phenyl azide (209 mg, 1 mmol) in methanol (2 mL) was added to it dropwise via syringe. A hydrogen balloon was fitted to the flask and the resultant solution was stirred at room temperature. On completion of the reaction (monitored by TLC), the reaction mixture was filtered (to remove the catalyst), washed with methanol and evaporated under reduced pressure to give trimethoxy aniline as a white solid (181 mg, 99% yield).