2-Alkylsulfonyl

Pyrimidine, I-alkyl-2-methyltetrahydro-C-thioacylation, 4, 807 Pyrimidine, 4-alkylsulfinyl-nucleophilie displaeement reaetions, 3, 97 Pyrimidine, 6-alkylsulfinyl-nucleophilic displacement reactions, 3, 97 Pyrimidine, 2-alkylsulfonyl-nueleophilie displaeement reactions, 3, 97 Pyrimidine, 4-alkylsulfonyl-nucleophilic displacement reactions, 3, 97 Pyrimidine, 6-alkylsulfonyl-nucleophilie displaeement reactions, 3, 97 Pyrimidine, alkylthio-dealkylation, 3, 95 desulfurization, 3, 95 oxidation, 3, 96 synthesis, 3, 135, 136 Pyrimidine, 2-alkylthio-aminolysis, 3, 96 hydrolysis, 3, 95 Prineipal Synthesis, 3, 136 Pyrimidine, 4-alkylthio-aminolysis, 3, 96 hydrolysis, 3, 95 Pyrimidine, 6-alkylthio-aminolysis, 3, 96 hydrolysis, 3, 95 Pyrimidine, 4-allenyloxy-rearrangement, 3, 93 Pyrimidine, 4-allyloxy-2-phenyl-rearrangement, 3, 93 Pyrimidine, 4-allynyloxy-rearrangement, 3, 93 Pyrimidine, 4-anilino-2,5,6-trifluoro-NMR, 3, 63 Pyrimidine, 2-aryl-pyrroleaeetic aeid from, 4, 152 Pyrimidine, arylazo-synthesis, 3, 131 Pyrimidine, 4-arylazo-reduetion, 3, 88... 

J. Drabowicz, S. Legedz and M. Mikolajczyk, J. Chem. Soc., Chem. Commun., 1670 (1985) for preparation of alkanesulfinic acids from 2-(alkylsulfonyl)benzothiazoles, see Y. Ueno, A. Kojima and M. Okawara, Chem. Letters, 2125 (1984). 

A novel homolytic substitution yielded 2-(tributylstannyl)benzothiazole [35]. Thus, 2-(alkylsulfonyl)benzothiazole 49 was allowed to react with 2 equivalents of tributyltin hydride in the presence of catalytic azobisisobutyronitrile (AIBN) in refluxing benzene, affording 2-(tributylstannyl)benzothiazole along with tributylstannylsulfinate 50. 

Alkylthio-imidazole konnen auch mit Salpetersaurc zu 2-Alkylsulfonyl-imidazolen oxi-diert werden1064 Die Oxidation mit 3-Chlor-perbenzoesaure fiihrt zu den entsprechenden 2-A Iky lsul fin yl-imidazolen1064. 

In a series of papers, Barlin and Brown117-181 reported their investigations of the nucleophilic displacement reactions of 2-alkylthio-, 2-alkylsulfinyl-, and 2-alkylsulfonyl-quinoxalines. 2-Methylsulfonyl-quinoxaline reacts about 60 times more rapidly with methoxide ion than 2-chloroquinoxaline, owing to a lower activation energy of reaction.177 2-Methylsulfinylquinoxaline (171) is about as reactive as the methylsul-fonyl compound, but 2-methylthioquinoxaline (172) is less reactive than the chloroquinoxaline. 79 In compounds (2-SO R) related to 169, 171, and 172, the ease of nucleophilic displacement by methoxide ion markedly decreases as the size of the alkyl group R increases Me > Et > isoPr > ter/-Bu.181... 

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