49540-00-3Relevant articles and documents
M -C2B10H11HgCl/AgOTf-Catalyzed Reaction for Reductive Deoxygenation
Yamasaki, Naoto,Kanno, Marina,Sakamoto, Kyohei,Kasai, Yusuke,Imagawa, Hiroshi,Yamamoto, Hirofumi
supporting information, p. 169 - 175 (2018/03/26)
A m -C2B10H11HgCl/AgOTf-catalyzed reaction of allyl silyl ethers with N -Boc- N ′-tosylhydrazine has been developed. Under mild conditions, the resulting allyl hydrazine products were transformed into naked alkenes in good yield. Furthermore, the used m -C2B10H11HgCl could be recovered quantitatively.
The kinetics and stereochemistry of base hydrolysis of the seven isomers of [Co(dien)(ampy)Cl]2+ and [Co(dien)(ibn)Cl]2+
Zhu, Tao,Jackson, W. Gregory,Hockless, David C.R.,Willis, Anthony C.
, p. 2210 - 2225 (2008/10/09)
The kinetics and stereochemistry for the base catalysed substitution reactions of all seven isomers (4 mer and 3 fac) of both [Co(dien)(ibn)Cl]2+ and [Co(dien)(ampy)Cl]2+ have been studied in detail, for water and azide ion as entering groups. The stereochemistry for the azide ion anation of some of the [Co(dien)(diamine)OH]2+ species have also been investigated. The mer isomers are of comparable reactivity and amongst the fastest reacting pentaaminechlorocobalt(III) complexes known. They are also much faster to hydrolyse than the fac species. In both the ibn and ampy systems, a common product stereochemistry is observed for the four reactant mer isomers (the product is a mixture of all four mer configurations), for both azide ion and water as nucleophiles, but not for the three fac reactants (H2O as nucleophile). The kinetic and equilibrium distributions are quite different. For the mer isomer reactions, a common trigonal bipyramidal five-coordinate intermediate deprotonated at the sec-NH of the dien is overwhelmingly implicated. The substitution mechanisms are argued in detail. Other data reported include isomerisation rates and equilibrium distributions for some mer-hydroxo and a mer-aqua complex of exceptional reactivity, equilibrium distributions for the mer-phosphato complexes in the ampy system under different pH conditions, the crystal structure for the isolated m1-[Co(dien)(ampy)OP(OH)3]Cl3 · 2H2O species, and a rationale for its predominance at neutral pH based on internal H-bonding.
Equilibrium and Enthalpy Measurements on the Zinc(II) Chloride, Bromide and Iodide Systems in Acetonitrile and Pyridine, and on the Mercury(II) Chloride, Bromide and Iodide Systems in Acetonitrile
Persson, Ingmar,Dash, Kailash C.,Kinjo, Yoshiaki
, p. 433 - 442 (2007/10/02)
The thermodynamics of the formation of chloride, bromide and iodide complexes of zinc (II) in acetonitrile and pyridine, and of mercury (II) in acetonitrile, have been determined at 25 deg C by means of potentiometric and calorimetric measurements.Pyridinium trifluoromethylsulfonate has been used as supporting electrolyte to an ionic strength of 0.1 M.The complex formation in the zinc(II) and mercury(II) halide systems is very strong in acetonitrile, and four complexes are formed for all halides of both metal ions.All zinc(II) halide complexes except the first bromide and iodide complexes are formed in exothermic reactions.All mercury (II) halide complexes are formed in strongly exothermic reactions.The stability constants observed in acetonitrile solution are large because acetonitrile solvates divalent ions poorly.The complex formation in the zinc(II) halides is considerably weaker in pyridine because of stronger solvation of the zinc(II) ion.Only two chloride and bromide and one iodide complex of zinc(II) are formed in pyridine.
