Generation and Characterization of Phenylsulfanylcarbene
摘要:
A photosensitive precursor (1) to phenylsulfanylcarbene 2 has been synthesized. Laser flash photolysis (308 nm) of 1 and chemical trapping studies of 2 are reported.
give the corresponding linear polyynes, although undesired isomerization to methylenebicyclo[5.3.0]triene derivatives took place concurrently. Expanded [3]-, [4]-, [5]-, and [6]radialene derivatives with exocyclic bicyclo[4.3.1]decatriene units were prepared by oxidative coupling of the monomeric units as precursors to the corresponding cyclo[n]carbons, monocyclic forms of carbon clusters. The spectroscopic
Reaction of photochemically generated dibromocarbene with 1,2-dimethylenecycloalkanes. 1,4-Addition is real
作者:Nguyet Anh Le、Maitland Jones、Friedrich Bickelhaupt、Willem H. De Wolf
DOI:10.1021/ja00204a024
日期:1989.10
Les dibromocarbenes generes thermiquement ou photochimiquement s'additionnent a divers dimethylene-1,2 cyclanes pour donner des produits d'addition-1,2 et -1,4
Les dibromocarbenes thermiquement ou photochimiquement s'additionnent a divers dimethyl-1,2 cyclanes pour donner des produits d'addition-1,2 et -1,4
A probe method for studying dibromocarbene by time resolved infrared spectroscopy
作者:George Holinga、Matthew S. Platz
DOI:10.1016/j.tetlet.2005.09.075
日期:2005.11
ide to form a ketenimine. The absolute rate constant of the reaction (kTBI = 2.3 × 109 M−1 s−1) was determined by laser flash photolysis techniques with UV–vis detection of the dibromocarbene–pyridine ylide. The ketenimine was detected by TRIR spectroscopy at 2040 cm−1. Isocyanide trapping of carbenes to form ketenimines is proposed as a general method of studying IR silent carbenes by TRIR spectroscopy
二溴卡宾与叔丁基异氰酸酯反应形成酮亚胺。反应的绝对速率常数(k TBI = 2.3×10 9 M -1 s -1)是通过激光闪光光解技术通过紫外可见检测二溴卡宾-吡啶内酯确定的。通过TRIR光谱在2040cm -1处检测到酮亚胺。提出了通过异氰酸酯捕集碳烯形成酮亚胺的方法,作为通过TRIR光谱研究IR沉默碳烯的通用方法。
Bimolecular chemistry of dimethylcarbene
作者:Igor R Likhotvorik、Eric Tippmann、Matthew S Platz
DOI:10.1016/s0040-4039(01)00359-8
日期:2001.4
A new non-nitrogenous precursor of dimethylcarbene has been synthesized. Photolysis of 10,10'-dimethyltricyclo[4.3.1.0(1,6)]deca-2,4-diene in solution with 254 nm light produces dimethylcarbene. Previously unknown intermolecular reactions of dimethylcarbene have been observed. (C) 2001 Elsevier Science Ltd. All rights reserved.
LE, NGUYET ANH;JONES, MAITLAND (JR);BICKELHAUPT, FRIEDRICH;WOLF, WILLEM H+, J. AMER. CHEM. SOC., 111,(1989) N2, C. 8491-8493
作者:LE, NGUYET ANH、JONES, MAITLAND (JR)、BICKELHAUPT, FRIEDRICH、WOLF, WILLEM H+