p-Tolylsulfonylmethylnitrosamide
Title: p-Tolylsulfonylmethylnitrosamide
CAS Registry Number: 80-11-5
CAS Name: N,4-Dimethyl-N-nitrosobenzenesulfonamide
Additional Names: N-methyl-N-nitroso-p-toluenesulfonamide
Trademarks: Diazald (Aldrich)
Molecular Formula: C8H10N2O3S
Molecular Weight: 214.24
Percent Composition: C 44.85%, H 4.70%, N 13.08%, O 22.40%, S 14.97%
Literature References: Prepd by the action of nitrous acid on p-tolylsulfonylmethylamide: DE 224388 (1910 to Bayer); Frdl. 10, 1216; Chem. Zentralbl. 1910, II, 609; Takizawa, J. Pharm. Soc. Jpn. 70, 490 (1950); de Boer, Backer, Rec. Trav. Chim. 73, 229 (1954); Org. Synth. 34, 96 (1954).
Properties: Yellow crystals from benzene + petr ether, mp 62°. Stable in an ordinary brown bottle for several years. A white coating (formed of p-tolylsulfonylmethylamide) does no harm. Insol in water. Sol in ether, petr ether, benzene, chloroform, carbon tetrachloride. Yields diazomethane on treatment with alkali.
Melting point: mp 62°
Use: In the laboratory prepn of diazomethane. Directions for use: de Boer, Backer, Rec. Trav. Chim. 73, 232 (1954).

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