نتایج جستجو برای: nucleophilic substitution

تعداد نتایج: 59949  

Journal: :Beilstein Journal of Organic Chemistry 2007
Gerald Dyker Andreas Thöne Gerald Henkel

A three-step procedure for the synthesis of multifunctionalized heterocycles from a pyroglutamic acid derivative, glycidyl components and anilines by nucleophilic substitution and cobalt catalysis is presented.

Journal: :Chemical communications 2010
Junfa Wei Yanni Gao Xiaoyan Ma Xiaowei Jia Xianying Shi Zhanguo Chen

The synthesis of a novel class of hexa-arm molecules with C(3d) symmetry via a simultaneous six-fold nucleophilic substitution reaction from 1,4,5,8,9,12-hexabromododecahydrotriphenylene has been described.

Journal: :Organic & biomolecular chemistry 2011
Anthony Chartoire Corinne Comoy Yves Fort

Herein, we report an efficient method for the double functionalisation of lithiated halogenopyridines, -pyrazines or -furopyridines through a convenient one-pot electrophilic trapping/nucleophilic substitution sequence.

In the present research, silica bonded n-propyl-1,3,5-triazine-2,4,6-triamine (SPTT) was synthesized by direct incorporation of chloropropyl groups through co-condensation of tetraethyl orthosilicate (TEOS) and 3-chloropropyl trimethoxysilane (CPTMS) and subsequent grafting the melamine onto the propyl groups via simple nucleophilic substitution reaction. The catalyst has been characterized by ...

Journal: :Molbank 2023

The title compound was synthesized in near-quantitative yield using nucleophilic aromatic substitution of 4,4′-(hexafluoroisopropylidene)diphenol (BPAF) with perfluoropyridine (PFP). purity and structure were determined by NMR (1H, 13C, 19F), GC–EIMS, single-crystal X-ray crystallography.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان 1386

چکیده ندارد.

2001
Gerard Dijkstra Wim H. Kruizinga Richard M. Kellogg

Cesium alkanoates (chiefly the propionate) have been investigated for their solubility, nucleophilic reactivity, and degree of ion pairing in dimethylformamide (DMF) and, in some cases, dimethyl sulfoxide (DMSO) solutions. 133Cs NMR has been used to establish the degree of ion pairing. From the data obtained it is concluded that the cesium ion is virtually completely solvated and that the carbo...

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