Sulphamoyl azides

A sulphamoyl azide has also been used in the synthesis of a phosphazenyl-stabilized ylide (16).28 Aroyl azides react readily with triarylphosphines to give phosphazenes... 

The preparation of N-(triphenylphosphoranylidene) sulphamoyl azide, Ph3P NS02N3, has been described, being by reduction of the hydrazide with nitrous acid ... 

III. SULPHAMOYL AZIDES, ESTERS AND HALIDES A. Sulphamoyl Azides... 

Obafemi210 has reported on the chemistry of 2-azidosulphonyl iminoindoline and 4-azidosulphonylimino-l-methylin,doline (160) which can be considered to be a type of sulphamoyl azide. The compounds were prepared by the reaction of sulphural azide (163) with indole (159 R = H) and 1-methylindole (159 R = Me) (equation 19). NMR, IR and mass spectral studies of the compounds confirmed the imino structure of the products 161 as written and not as in 164. Hydrolysis of 160 in aqueous KOH yielded the oxindoles 162 while hydrogenation over platinum oxide leads to the formation of the iminosulphonamides 161. 

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