Models for the ion-pair cluster mechanism in nucleophilic substitution reactions

1981 ◽  
Vol 46 (17) ◽  
pp. 3530-3533 ◽  
Author(s):  
Socorro Ramos ◽  
William Rosen
Keyword(s):  
Nucleophilic Substitution ◽  
Ion Pair ◽  
Substitution Reactions ◽  
Nucleophilic Substitution Reactions ◽  
Cluster Mechanism

Betylates. 4. The synthesis and preparative nucleophilic substitution reactions of alkyl S-[3]betylates

1983 ◽  
Vol 61 (2) ◽  
pp. 235-243 ◽  
Author(s):  
James Frederick King ◽  
Stanislaw Skonieczny ◽  
Gary Allan Poole
Keyword(s):  
Nucleophilic Substitution ◽  
Phase Transfer ◽  
Ion Pair ◽  
Substitution Reactions ◽  
Nucleophilic Substitution Reactions ◽  
Transfer Processes ◽  
Nitrogen Analogues

Alkyl S-[3]betylates (S,S-dialkyl-S-3[(alkyloxy)sulfonyl]propylsulfonium salts), the first examples of S-betylates (sulfonioalkanesulfonic esters), have been synthesized by two routes, and their suitability as intermediates in the transformation of alcohols by nucleophilic substitution reactions examined. They have been found to react readily in stoichiometric phase transfer processes, including substrate–reagent ion-pair reactions, like their previously studied nitrogen analogues, with the following particular features: (a) they may be used with basic nucleophiles (unlike [2]betylates), (b) they are more simply made from commercially available starting materials than [3]betylates, and (c) they can be made by a route that avoids a final alkylation step.

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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