ChemInform Abstract: Reactivity of Some Coordinated Ligands Containing Sulfur Toward Nucleophilic Substitution Reactions. Part 2. Kinetics and Mechanism of the Reaction of (1,2-Diphenylethanediylidene Bis(S-methylhydrazinecarbodithioate)NN′SS′(-2)) Nickel

ChemInform ◽  
1989 ◽  
Vol 20 (16) ◽  
Author(s):  
M. F. ISKANDER ◽  
L. EL-SAYED ◽  
N. J. LEES-GAYED ◽  
G. R. M. TAWFIK
Keyword(s):  
Nucleophilic Substitution ◽  
Kinetics And Mechanism ◽  
Substitution Reactions ◽  
Nucleophilic Substitution Reactions ◽  
Mechanism Of The Reaction

Nucleophilic substitution reactions of diethyl 4-nitrophenyl phosphate triester: Kinetics and mechanism

2011 ◽  
Vol 43 (12) ◽  
pp. 708-714 ◽  
Author(s):  
Enrique A. Castro ◽  
Daniela Ugarte ◽  
M. Fernanda Rojas ◽  
Paulina Pavez ◽  
José G. Santos
Keyword(s):  
Nucleophilic Substitution ◽  
Kinetics And Mechanism ◽  
Substitution Reactions ◽  
Nucleophilic Substitution Reactions ◽  
Nitrophenyl Phosphate

Isotope Effects in Nucleophilic Substitution Reactions. I. The Mechanism of the Reaction of Phenylbenzyldimethylammonium Ion with Thiophenoxide Ion

1975 ◽  
Vol 53 (21) ◽  
pp. 3216-3226 ◽  
Author(s):  
Kenneth Charles Westaway ◽  
Raymond Alcide Poirier
Keyword(s):  
Nucleophilic Substitution ◽  
Isotope Effects ◽  
Phenyl Group ◽  
Bond Rupture ◽  
Substitution Reactions ◽  
Nucleophilic Substitution Reactions ◽  
Carbonium Ion ◽  
Kinetic Isotope ◽  
Nitrogen Bond ◽  
Mechanism Of The Reaction

A kinetic study of the nucleophilic substitution reactions of a series of para-substituted phenylbenzyldimethylammonium nitrates with sodium thiophenoxide at 0 °C in N,N-dimethylformamide containing a large excess of sodium nitrate, has shown the reaction to be a second-order process which is first-order in both the substrate and the nucleophile. A Hammett ρ value of +2.04 for different para-substitutents on the N-phenyl group of the quaternary ammonium salt and a large nitrogen kinetic isotope effect of 1.0200 ± 0.0007 have excluded any mechanism involving a carbonium ion intermediate but are in accord with an SN2 mechanism with a substantial amount of carbon–nitrogen bond rupture in the transition state.

The unexpected reactivity of 9-iodo-nido-carborane: from nucleophilic substitution reactions to the synthesis of tricobalt tris(dicarbollide) Na[4,4′,4′′-(MeOCH2CH2O)3-3,3′,3′′-Co3(μ3-O)(μ3-S)(1,2-C2B9H10)3]

2021 ◽  
Vol 50 (7) ◽  
pp. 2671-2688
Author(s):  
Marina Yu. Stogniy ◽  
Sergey A. Anufriev ◽  
Akim V. Shmal'ko ◽  
Sergey M. Antropov ◽  
Aleksei A. Anisimov ◽  
...  
Keyword(s):  
Nucleophilic Substitution ◽  
Substitution Reactions ◽  
Nucleophilic Substitution Reactions

An unusual reactivity of 9-iodo-nido-carborane [9-I-7,8-C2B9H11]− towards nucleophiles under strong basic conditions was revealed.

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