2010 Fiscal Year Final Research Report

Synthesis and Characterization of Novel Group 16 Element Compounds with Oxidation State IV or VI Having Carbon Ligands

Research Project

Project/Area Number	20550050
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Organic chemistry
Research Institution	Kitasato University
Principal Investigator	MINOURA Mao Kitasato University, 理学部, 准教授 (30274046)
Project Period (FY)	2008 – 2010
Keywords	有機元素化学 / 典型元素 / 超原子価 / オニウム塩 / 結晶構造解析 / テルル
Research Abstract	We report here, 1) the systematic synthesis hypervalent tetraaryltellurium(IV) compounds bearing substituents at the para position of the aryl rings, and the first SP structure of Te(IV) compound was found; 2) Newly prepared organotelluronium salts showed green-blue color in solution as the heavier main group element homologue and analogue instead of the central carbon atom of Crystal Violet; 3) Functionalization reactions of hexaorganotelluriums(VI) were investigated using (4-bromophenyl)pentaphenyltellurium(VI) which was prepared form the reaction of pentaphenyltellurium cation with 4-bromophenyl lithium. Functionalization reactions of the bromo-compound were proceeded to give useful cross-coupling products having octahedral structure around Te(VI).