Benudhar Punji
Indian Institute of Technology Bombay
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Dalton Transactions | 2006
Benudhar Punji; Joel T. Mague; Maravanji S. Balakrishna
Transition metal complexes of bis(2-diphenylphosphinoxynaphthalen-1-yl)methane (1) are described. Bis(phosphinite) 1 reacts with Group 6 metal carbonyls, [Rh(CO)2Cl]2, anhydrous NiCl2, [Pd(C3H5)Cl]2/AgBF4 and Pt(COD)I2 to give the corresponding 10-membered chelate complexes 2, 3 and 5-8. Reaction of 1 with [Rh(COD)Cl]2 in the presence of AgBF4 affords a cationic complex, [Rh(COD){Ph2P(-OC10H6)(mu-CH2)(C10H6O-)PPh2-kappaP,kappaP}]BF4 (4). Treatment of 1 with AuCl(SMe2) gives mononuclear chelate complex, [(AuCl){Ph2P(-OC10H6)(mu-CH2)(C10H6O-)PPh2-kappaP,kappaP}] (9) as well as a binuclear complex, [Au(Cl){mu-Ph2P(-OC10H6)(mu-CH2)(C10H6O-)PPh2-kappaP,kappaP}AuCl] (10) with ligand 1 exhibiting both chelating and bridged bidentate modes of coordination respectively. The molecular structures of 2, 6, 7, 9 and 10 are determined by X-ray studies. The mixture of Pd(OAc)2 and effectively catalyzes Suzuki cross-coupling reactions of a range of aryl halides with aryl boronic acid in MeOH at room temperature or at 60 degrees C, giving generally high yields even under low catalytic loads. The cationic rhodium(I) complex, [Rh(COD){Ph2P(-OC10H6)(mu-CH2)(C10H6O-)PPh2-kappaP,kappaP}]BF4 (4) catalyzes the hydrogenation of styrenes to afford the corresponding alkyl benzenes in THF at room temperature or at 70 degrees C with excellent turnover frequencies.
Journal of Molecular Catalysis A-chemical | 2006
Benudhar Punji; Chelladurai Ganesamoorthy; Maravanji S. Balakrishna
Inorganic Chemistry | 2006
Benudhar Punji; Joel T. Mague; Maravanji S. Balakrishna
Inorganic Chemistry | 2007
Benudhar Punji; Joel T. Mague; Maravanji S. Balakrishna
Inorganic Chemistry | 2007
Benudhar Punji; Joel T. Mague; Maravanji S. Balakrishna
Journal of Organometallic Chemistry | 2006
Benudhar Punji; Joel T. Mague; Maravanji S. Balakrishna
Polyhedron | 2006
Sasmita Mohanty; Benudhar Punji; Maravanji S. Balakrishna
European Journal of Inorganic Chemistry | 2007
Benudhar Punji; Joel T. Mague; Maravanji S. Balakrishna
Journal of Organometallic Chemistry | 2007
Benudhar Punji; Maravanji S. Balakrishna
Journal of Organometallic Chemistry | 2010
Maravanji S. Balakrishna; Pawan Kumar; Benudhar Punji; Joel T. Mague