On Assembling Polychlorinated Aromatic Hydrocarbons from Carbon Tetrachloride via Dichlorocarbene Intermediary by a Solvothermal Reaction: A Reaction Pattern from Carbene−Ylide Interconversion
作者:Su-Yuan Xie、Yin Peng、Meng Chen、Rong-Bin Huang、Yuan L. Chow、Lan-Sun Zheng
DOI:10.1021/jo048190+
日期:2005.2.1
The forced one-electron reduction of carbon tetrachloride with sodium in a sealed steel vessel is shown to have a narrow window of conditions to arrest the reaction at the polychlorinated aromatic hydrocarbons (PCAHs), as well as to prevent the reaction from proceeding all the way to the final stage of graphite and other carbon solids. The intermediates are quenched with toluene or benzene to give
2.3.6.7-Tetrachlornaphthalin-1.4.5.8-tetracarbonsäure-diimid und ein Verfahren zur Herstellung von Tetrachlornaphthalintetracarbonsäure-Derivaten
申请人:BAYER AG
公开号:EP0249841A1
公开(公告)日:1987-12-23
Die Erfindung betrifft ein Verfahren zur Herstellung von 2.3.6.7-Tetrachlornaphthalin-1.4.5.8-tetracarbonsäure-Derivaten der Formel I
in der B für -O- oder -NH- steht, durch Oxidation von Perchlordiazapyren in saurem Medium und das neue 2.3.6.7-Tetrachlornaphthalin-1.4.5.8-tetra-carbonsäurediimid.
本发明涉及一种制备式 I 的 2,3,6,7-四氯萘-1,4,5,8-四羧酸衍生物的工艺。
其中B为-O-或-NH-,通过在酸性介质中氧化全氯二氮杂蒽和新的2.3.6.7-四氯萘-1.4.5.8-四羧酸二亚胺。
Application of thermal kinetics to small carbon ion clusters
作者:Chava Lifshitz、Pablo Sandler、Hans Friedrich Gruetzmacher、Jing Sun、Thomas Weiske、Helmut Schwarz
DOI:10.1021/j100127a006
日期:1993.6
Kinetic energy release distributions (KERDS') were obtained experimentally for unimolecular decomposition of small carbon ion clusters C(n)+, n = 10-13 and 18, made by dissociative ionization from perchloro conjugated hydrocarbons. A model-free approach due to Klots, based on the application of thermal kinetics to small systems, allowed the extraction of binding energies for these clusters. The results were found to be in very good agreement with literature values for collisionally activated dissociation (CAD) threshold energies. The ion C-11+ demonstrates a particularly high binding energy in agreement with its magic character in C(n)+ mass spectra, while C-13+ has a relatively low binding energy, reflected in its low abundance in such spectra.
Vollmann et al., Justus Liebigs Annalen der Chemie, 1937, vol. 531, p. 1,38
作者:Vollmann et al.
DOI:——
日期:——
Process of preparing naphthalene-1,4,5,8-tetracarboxylic acids and new derivatives of such acids