نتایج جستجو برای: nucleophilic substitution reactions

تعداد نتایج: 222918  

Journal: :Beilstein Journal of Organic Chemistry 2005
Eugene V Babaev Natalya I Vasilevich Anna S Ivushkina

2-Aryl-6-cyano-7-methyl-5-indolizinones were successfully converted into 2-aryl-5-chloro-6-cyano-7-methylindolizines. The obtained 5-chloroindolizines readily underwent nucleophilic substitution at position 5 leading in high yields to novel 5-functionalised indolizines.

1997
Hyuck Keun Oh Jeong Hwan Yun In Ho Cho Ikchoon Lee

Nucleophilic substitution reactions of 2-thiopheneethyl benzenesulfonates (2-TEB) and 3-thiopheneethyl benzenesulfonates (3-TEB) with anilines and N,N-dimethylanilines (DMA) are investigated in acetonitrile at 60.0 C. The cross-interaction constants ρ XZ determined for the reactions with anilines are large negative (− 0.50) which are comparable to those for the similar predominantly frontside-a...

Journal: :Journal of computational chemistry 2007
Marcel Swart Miquel Solà F. Matthias Bickelhaupt

We have carried out a detailed evaluation of the performance of all classes of density functional theory (DFT) for describing the potential energy surface (PES) of a wide range of nucleophilic substitution (SN2) reactions involving, amongst others, nucleophilic attack at carbon, nitrogen, silicon, and sulfur. In particular, we investigate the ability of the local density approximation (LDA), ge...

Journal: :Journal of agricultural and food chemistry 2006
Wei Zheng Scott R Yates Sharon K Papiernik Mingxin Guo Jianying Gan

The chlorinated fumigants chloropicrin (trichloronitromethane) and 1,3-dichloropropene (1,3-D) are extensively used in agricultural production for the control of soilborne pests. The reaction of these two fumigants with hydrogen sulfide species (H2S and HS-) was examined in well-defined anoxic aqueous solutions. Chloropicrin underwent an extremely rapid redox reaction in the hydrogen sulfide so...

Journal: :IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 2018

Journal: :Chinese Journal of Organic Chemistry 2015

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