Nucleophilic substitution miscellaneous compounds

Arasabenzene, with chromium, 5, 339 Arcyriacyanin A, via Heck couplings, 11, 320 Arduengo-type carbenes with titanium(IV), 4, 366 with vanadium, 5, 10 (Arene(chromium carbonyls analytical applications, 5, 261 benzyl cation stabilization, 5, 245 biomedical applications, 5, 260 chiral, as asymmetric catalysis ligands, 5, 241 chromatographic separation, 5, 239 cine and tele nucleophilic substitutions, 5, 236 kinetic and mechanistic studies, 5, 257 liquid crystalline behaviour, 5, 262 lithiations and electrophile reactions, 5, 236 as main polymer chain unit, 5, 251 mass spectroscopic studies, 5, 256 miscellaneous compounds, 5, 258 NMR studies, 5, 255 palladium coupling, 5, 239 polymer-bound complexes, 5, 250 spectroscopic studies, 5, 256 X-ray data analysis, 5, 257... 

Miscellaneous Substitution Reactions (mostly Nucleophilic).— The 5-halogen-substituent in isothiazoles is readily replaced by nucleophilic substitution with alkoxy- or hydroxy-groups this provides a route to 5-alkoxy-3-methyl-4-nitroisothiazoles and 5-hydroxy-4-nitroisothiazoles. 4,5-Dihromo-3-methylisothiazole affords the 5-butoxy-compound on treatment with sodium butoxide in butanol, and the 5-hydroxy-compound with methanolic sodium hydroxide, but fails to react with sodium methoxide. ... 

Miscellaneous Reactions of LR. Under particular conditions, certain carbonyl compounds and other substrates react with LR to form thiophosphonates or heterocycles, which fact throws some hght on the mechanism of thionation reactions with LR. Carbinols undergo nucleophilic substitution with LR to form the corresponding thiols. The redox properties of LR can be utilized to prepare dithiolactones from dialdehydes (eq 22), a-0X0 thioamides from nitro ketones (eq 23), or sulfides from sulfoxides. ... 

Miscellaneous reactions of cr-sulphonyl carbanions with electrophiles include processes involving arylsulphonylmethyl methyl ether anions, cr-sulphinyl sulphone anions, perfluorobutylsulphonylmethylmagnesium halides, nucleophilic substitution in aromatic nitro-compounds by cr-halogenosulphonyl... 

Miscellaneous Compounds. Nucleophilic substitution of Bu Li with optically active PhArPMe (Ar=4-Bu C6H4) gives displacement of Ph and Ar in the ratio 1.4 1. There is complete inversion of configuration in each case, and no evidence for any pseudorotation. A classical Sn2 reaction is suggested rather than a mechanism involving a five-co-ordinate intermediate. Hydroxyphosphoranes have been postulated as transient intermediates in the reaction of hydroxide ions with four-co-ordinate phosphorus compounds. A crystalline compound which may have such a structure, (16), has been isolated. In solution it exists in dynamic equilibrium with (17). 

Miscellaneous PTC Reactions The field of PTC is constantly expanding toward the discovery of new enantioselective transformations. Indeed, more recent applications have demonstrated the capacity of chiral quaternary ammonium salts to catalyze a number of transformations, including the Neber rearrangement (Scheme 11.19a), ° the trifluoromethylation of carbonyl compounds (Scheme 11.19b), ° the Mannich reaction (Scheme 11.19c), and the nucleophilic aromatic substitution (SnAt)... 

---