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Benzenesulfonyl azide, 4-methyl

Di-(ert-butyl malonate Malonic acid, di-terf-butyl ester (8) Pro-panedioic acid, bis(l,l-dimethylethyl)ester (9) (541-16-2) p-ToIuenesulfonyl azide (8) Benzenesulfonyl azide, 4-methyl- (9) (941-55-9)... [Pg.172]

Recently, two methods were published that have attracted some interest, because no metal salts are necessary as oxidation reagents. Shi and Xu (1990) found that substituted (trifluoromethyl)-diazoalkanes (CF3CRN2, R = alkyl or aryl) are obtained by refluxing trifluoromethyl ketones and 2,4,6-tri(isopropyl)benzenesulfonyl hydrazone in a methanolic solution of KOH. Kumar (1991) synthesized a-diazocar-bonyl compounds under tri-phase phase-transfer catalysis using a polystyrene-supported (tributyl)(methyl)-ammonium chloride catalyst, methanesulfonyl chloride, NaN3, and methylsulfonyl azide in 1,2-dichloroethane and a carbonyl-activated substrate (69-94% yield). [Pg.40]

See other pages where Benzenesulfonyl azide, 4-methyl is mentioned: [Pg.125]    [Pg.202]    [Pg.125]    [Pg.24]    [Pg.2211]    [Pg.16]    [Pg.2128]    [Pg.9]    [Pg.202]    [Pg.2322]    [Pg.552]    [Pg.168]   
See also in sourсe #XX -- [ Pg.6 , Pg.9 , Pg.59 , Pg.59 , Pg.66 ]



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