Unusually direct synthesis of mono- and di-substituted tetrathiafulvalenes
作者:R.Alan Aitken、Lawrence Hill、Neil J Wilson
DOI:10.1016/s0040-4039(99)80112-9
日期:1999.1
Direct reaction of norbornadiene, tributylphosphine, carbon disulfide and acetylenic diesters affords the norbornene-fused dihydrotetrathiafulvalenes 7 in addition to the bis-adducts 4 and for less reactiveacetylenicdipolarophiles only 7 is isolated. Upon flash vacuum pyrolysis the compounds 7 undergo a retro Diels-Alder reaction to give substituted tetrathiafulvalenes 8. By using the norbornadiene
The preparation and reactivity of two carbondisulfide complexes of tungsten, W(CO)3(R2PC2H4PR2)CS2 (R = CH3, C6H5) are described. Electrophiles (MeI, W(CO)3(R2PC2H4PR2)) add at the exocyclic sulfur, nucleophiles react with CS2 substitution (pyridine, P(OR)3), sulfur abstraction, or addition at carbon (PR3. Towards N3− the coordinated CS2 acts as a dipolarophile, where as with acetylene dicarboxylic
描述了钨的两种二硫化碳配合物W(CO)3(R 2 PC 2 H 4 PR 2)CS 2(R = CH 3,C 6 H 5)的制备和反应性。亲电试剂(MeI,W(CO)3(R 2 PC 2 H 4 PR 2))在环外硫上添加,亲核试剂与CS 2取代(吡啶,P(OR)3)反应,硫抽象或在碳上加成( PR 3朝向N 3 -协调的CS 2 用作双极性亲和剂,其中与乙炔二羧酸酯一样,它作为1,3-偶极反应生成二硫代卡宾衍生物。
PITTMAN JR. C. U.; NARITA M., J. CHEM. SOC. CHEM. COMMUNS. <CCOM-AB>, 1975, NO 24, 960
作者:PITTMAN JR. C. U.、 NARITA M.
DOI:——
日期:——
Die koordinationschemie CS-funktioneller verbindungen
作者:Wolfdieter A. Schenk、Dagmar Kuemmerle、Thomas Schwietzke