scholarly journals Bond selectivity in electron-induced reaction due to directed recoil on an anisotropic substrate

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Kelvin Anggara ◽  
Kai Huang ◽  
Lydie Leung ◽  
Avisek Chatterjee ◽  
Fang Cheng ◽  
...  
Keyword(s):  
Anisotropic Substrate ◽  
Induced Reaction ◽  
Bond Selectivity

Novel Products in the CO2-Laser Induced Reaction of Trichloroethylene

1995 ◽  
Vol 60 (1) ◽  
pp. 104-114 ◽  
Author(s):  
Boyd L. Earl ◽  
Richard L. Titus
Keyword(s):  
Irradiation Time ◽  
Product Distribution ◽  
Incident Power ◽  
Cell Geometry ◽  
Reaction Conditions ◽  
Peak Areas ◽  
Induced Decomposition ◽  
Nmr Methods ◽  
Induced Reaction ◽  
Novel Products

Previous reports on the thermal or CO2-laser induced decomposition of trichloroethylene have identified only one condensible product, hexachlorobenzene (in addition to HCl and mono- and dichloroacetylene). We have found that trichloroethylene vapor exposed to cw irradiation on the P(24) line of the (001 - 100) band of the CO2 laser at incident power levels from 8 - 17 W produces numerous products, of which the 13 major ones have been identified using IR, GC/MS, GC/FTIR, and NMR methods. All of these products have 4, 6, or 8 carbons, are highly unsaturated, and are completely chlorinated or contain a single hydrogen. C4HCl5 and C6Cl6 isomers (three of each) account for S 55% to 85% of total products (based on peak areas in the total ion chromatograms in GC/MS runs), depending on reaction conditions. In addition to characterizing the products, we discuss the dependence of the product distribution on laser power, irradiation time, and cell geometry, and we outline a possible mechanism.

Laser excitation of BCl3 and consequential collision-induced reaction with carrier gases

2021 ◽  
pp. 138572
Author(s):  
Jing Guo ◽  
Ye-Jun Li ◽  
Jun-Ping Ma ◽  
Xian Tang ◽  
Xue-Shen Liu
Keyword(s):  
Laser Excitation ◽  
Carrier Gases ◽  
Induced Reaction

scholarly journals Shear-induced reaction-limited aggregation kinetics of Brownian particles at arbitrary concentrations

2010 ◽  
Vol 132 (13) ◽  
pp. 134903 ◽  
Author(s):  
Alessio Zaccone ◽  
Daniele Gentili ◽  
Massimo Morbidelli
Keyword(s):  
Aggregation Kinetics ◽  
Brownian Particles ◽  
Kinetics Of ◽  
Induced Reaction

Removal of Dibenzothiophene from the Simulated Petroleum by γ-Irradiation Induced Reaction

2006 ◽  
Vol 20 (1) ◽  
pp. 142-147 ◽  
Author(s):  
Zan Qu ◽  
Naiqiang Yan ◽  
Yanfei Zhao ◽  
Jinping Jia ◽  
Dan Wu
Keyword(s):  
Γ Irradiation ◽  
Induced Reaction

Light-Induced Reaction of Halorhodopsin Prepared under Low Salt Conditions1

1981 ◽  
Vol 90 (5) ◽  
pp. 1267-1274 ◽  
Author(s):  
Tarou OGURUSU ◽  
Akio MAEDA ◽  
Norihiro SASAKI ◽  
Tôni YOSHIZAWA
Keyword(s):  
Low Salt ◽  
Induced Reaction

scholarly journals Transition-Metal-Free Boryl Substitution Using Silylboranes and Alkoxy Bases

Synlett ◽  
2017 ◽  
Vol 28 (11) ◽  
pp. 1258-1267 ◽  
Author(s):  
Hajime Ito ◽  
Eiji Yamamoto ◽  
Satoshi Maeda ◽  
Tetsuya Taketsugu
Keyword(s):  
Transition Metal ◽  
Functional Group ◽  
Experimental Studies ◽  
Transition Metal Catalysts ◽  
Alkyl Halides ◽  
Aryl Halides ◽  
Nucleophilic Attack ◽  
Important Class ◽  
Mechanistic Studies ◽  
Induced Reaction

Silylboranes are used as borylation reagents for organohalides in the presence of alkoxy bases without transition-metal catalysts. PhMe2Si–B(pin) reacts with a variety of aryl, alkenyl, and alkyl halides, including sterically hindered examples, to provide the corresponding organoboronates in good yields with high borylation/silylation ratios, showing good functional group compatibility. Halogenophilic attack of a silyl nucleophile on organohalides, and subsequent nucleophilic attack on the boron electrophile are identified to be crucial, based on the results of extensive theoretical and experimental studies. This boryl­ation reaction is further applied to the first direct dimesitylboryl (BMes2) substitution of aryl halides using Ph2MeSi–BMes2 and Na(O-t-Bu), affording aryldimesitylboranes, which are regarded as an important class of compounds for organic materials.1 Introduction2 Boryl Substitution of Organohalides with PhMe2Si–B(pin)/Alkoxy Bases3 Mechanistic Investigations4 DFT Mechanistic Studies Using an Artificial Force Induced Reaction (AFIR) Method5 Dimesitylboryl Substitution of Aryl Halides with Ph2MeSi–BMes2/Na(O-t-Bu)6 Conclusion

Sign in / Sign up

Export Citation Format

Share Document