15799-48-1Relevant articles and documents
Tetra(p-chlorophenyl)tin
Ng
, (1997)
The crystal structure of tetra(p-chlorophenyl)tin, [Sn-(C6H4Cl)4], consists of discrete molecules having 1 molecular symmetry.
Palladium(II)- and rhodium(III)-catalyzed carbonylation reaction of aryltin compounds
Uemura,Ohe,Motofusa,Ohe
, p. 1343 - 1348 (2007/10/03)
The Pd(II)- and Rh(III)-catalyzed carbonylation reaction of several aryltin compounds, i.e., tetraphenyltin (Ph4Sn), in acetonitrile (MeCN) and acetic acid was studied. The reaction of Ph4Sn with 1 atm of CO in the presence of a stoichiometric amount of Pd(II) salt was performed to confirm whether more than one of the four phenyl groups could be transferred to the products. To accelerate the carbonylation, LiCl was added, thus, producing benzophenone, benzoic acid, and a small amount of biphenyl as organic products, but only one of the four phenyl groups was transferred to the products. For the Rh(II)-mediated and -catalyzed carbonylation of aryltin compounds in MeCN, benzophenone was mainly produced together with benzoic acid and biphenyl. Seventy-five percent of the four phenyl groups were transferred to the products. The product yield was > 100% based on the amount of Rh(III) chloride used, showing that the Rh(III) salt itself worked as a catalyst without reoxidant addition. Thus, More than one of two, three, or four aryl groups of aryltin compounds, and almost all of them in some cases, could be transferred to the products in this catalytic carbonylation.