Pyrrolo Annelated Tetrathiafulvalenes: The Parent Systems
摘要:
[GRAPHICS]The synthesis of the parent bis(pyrrolo[3,4- d])tetrathiafulvalene via a nonclassical and sim pie pyrrole synthesis is reported, together with a detailed study of the fundamental redox behavior of some of this class of heterocycles.
Polystyrene-bound diaryl selenoxide and telluroxide have been prepared, which behaved as mild oxidizingagents for thiols to disulfides, phosphines to phosphine oxides, hydroquinone and catechol to p- and o-benzoquinones, and thioketones to oxo compounds. The telluroxide completed these reactions in shorter periods or under milder conditions than the selenoxide. In addition, they effected novel solvent-dependent
In addition, the synthesis of diselenadithiafulvalene derivatives (25-28) could be accomplished by Me(3)Al-mediated reaction of tin thiolate (2a) or selenolates (3d and 5) with esters (22a, 22d, and 24). Furthermore, the application of the Me(3)Al-promoted reaction of tin thiolate (34) with esters (11a-b, 22a-d, and 35a-b) for the synthesis of unsymmetrical TTFs-fused donors enabled us to obtain various
Selenium analogues of TMET-TTP (2-(4,5-bisthiomethyl-1,3-dithiol-2-ylidene)-5-(4,5-ethylenedithio-1,3-dithiol-2-ylidene)-1,3,4,6-tetrathiapentalene) 1b-d have been synthesized. The iodine salt (1b)4I3 exhibits moderately high conductivity (σrt=13S cm−1) with semiconducting temperature dependence, and the donor arrangement is θ-type. The present θ-type salt as well as TMET-TTP salts is located at the insulating limit in the universal phase diagram of θ-phases.
Metal Complexes Based on Tetrathiafulvalene‐Fused π‐Extended Schiff Base Ligands – Syntheses, Characterization, and Properties
作者:Jie Qin、Chen‐Xi Qian、Nan Zhou、Rong‐Mei Zhu、Yi‐Zhi Li、Jing‐Lin Zuo、Xiao‐Zeng You
DOI:10.1002/ejic.201101022
日期:2012.1
π-Conjugated tetrathiafulvalene (TTF)-based donors with a monoamine moiety, 2-[4,5-bis(methylthio)-1,3-dithiol-2-ylidene]-1,3-benzodithiol-5-amine (La) and 2-(5,6-dihydro[1,3]dithiolo[4,5-b][1,4]dithiin-2-ylidene)-1,3-benzodithiol-5-amine (Lb), have been synthesized. Condensation of the TTF amines with different pyridinecarbaldehydes afforded new TTF-fused π-extended Schiff base ligands, La-imine-4-pyridyl
π-共轭四硫富瓦烯 (TTF) 基供体,具有单胺部分,2-[4,5-双(甲硫基)-1,3-二硫醇-2-亚基]-1,3-苯并二硫醇-5-胺 (La)和 2-(5,6-dihydro[1,3]dithiolo[4,5-b][1,4]dithiin-2-ylidene)-1,3-benzodithiol-5-amine (Lb), 已合成. TTF 胺与不同的吡啶甲醛缩合得到新的 TTF 稠合 π 扩展席夫碱配体 La-亚胺-4-吡啶基 (L1)、La-亚胺-3-吡啶基 (L2) 和 Lb-亚胺-2-吡啶基(L3)。基于这些席夫碱吡啶配体的四种金属配合物,M(hfac)2(L)2 (M = CuII, L = L1, 4; M = MnII, L = L1, 5; M = CuII, L = L2, 6 ; hfac = 六氟乙酰丙酮化物) 和 [Re(CO)4(L3)][Re2(CO)6Cl3]
Selective Metalation of 1,3-Dithiole-2-thiones: An Effective Preparation of New Symmetrically and Nonsymmetrically Tetraarylated Tetrathiafulvalenes
作者:Paul Knochel、Julia Nafe
DOI:10.1055/s-0035-1560728
日期:——
tetrathiafulvalenes of interest as organic materials. We report an efficient preparation of fully functionalized tetrathiafulvalene derivatives (TTF) with an extended π-system via a selective magnesiation of 1,3-dithiole-2-thiones (DTT) using 2,2,6,6-tetramethylpiperidin-1-ylmagnesium chloride–lithium chloride (TMPMgCl·LiCl); subsequent reaction with various electrophiles, such as halides, acid chlorides, allyl