Reference

Sulfamic acid halides

Sulfamic acid halides. Kersten, Siegfried; Hamprecht, Gerhard (BASF A.-G., Ger.). Ger. Offen. DE 2553461 8 Jun 1977, 19 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C07C143-86. APPLICATION: DE 75-2553461 28 Nov 1975. DOCUMENT TYPE: Patent CA Section: 23 (Aliphatic Compounds) MeNHSO2Cl 129.4 and paraldehyde 152 in ClCH2CH2Cl 620 parts were treated with 162 parts SOCl2 in the presence of 0.1 part .alpha.-picoline for 2 h at 50.degree. and 1 h at 83.degree. to give 148 parts product comprised of 66 wt.% MeCHClNMeSO2Cl (I) and 34 wt.% CH2:CHNMeSO2Cl (II). Treatment of the reaction mixt. with HCl in the presence of AlCl3 gave 100% conversion of II to I. In another example, EtNHSO2Cl and paraldehyde in ClCH2CH2Cl satd. with HCl were treated at 15-25.degree. 16548-07-5 is just another one chemical used in this study. with SOCl2 in the presence of pyridine to give 53% product comprised of MeCHClNEtSO2Cl 75 and CH2:CHNEtSO2Cl 25%. .

Sulfamic acid guanidine salt

Sulfamic acid guanidine salt. (Chisso Corp., Japan). Jpn. Kokai Tokkyo Koho JP 60048962 A2 16 Mar 1985 Showa, 6 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: ICM: C07C161-00. APPLICATION: JP 83-155972 26 Aug 1983. DOCUMENT TYPE: Patent CA Section: 23 (Aliphatic Compounds) Section cross-reference(s): 43 Title compd., useful as noninflammable components for papers was prepd. by heating and fusing NH2SO3NH4 (I) with dicyanodiamide (II) at 20 kg/cm2-0.01 kg/cm2 (gage). Thus, 429 I and 171 g II were mixed, and then autocleaved at 0.1-0.2 kg/cm2 (gage), 160-180° 2 h to give title compd., which was pure and heat stable.