Reference

Use of bis(fluoroaliphaticsulfonyl)imides in cationic polymerization

Use of bis(fluoroaliphaticsulfonyl)imides in cationic polymerization. Koshar, Robert J. (Minnesota Mining and Mfg. Co., USA). U.S. US 4031036 21 Jun 1977, 6 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C08F004-00. NCL: 260002000N. APPLICATION: US 75-585101 9 Jun 1975. DOCUMENT TYPE: Patent CA Section: 35 (Synthetic High Polymers) Fluorinated aliph. disulfonylimides, (RSO2)2NH (I, R = perfluoro Me, Bu) are catalysts for polymn. or curing cation-sensitive monomers and resins, e.g. epoxy resins, and I salts are latent catalysts, activated by heat. Thus, 29.5 g nonafluorobutylsulfonylimide Na salt [51903-48-1] and 40 mL hexamethyldisilazane were refluxed 3 h and excess disilazan was removed by distn. The residue in 80 mL dioxane and 20 g trifluoromethylsulfonyl fluoride [335-05-7] were heated 16 h at 100.degree. to give the Na salt which was neutralized to give nonafluorobutylsulfonyltrifluoromethylsulfonylimide (II) [39847-37-5]. II (0.08 g) was added to 6 g ERL 4221 [25085-98-7] at room temp. to give a hard, brittle polymer in 15 s.

An olefin polyanion equivalent: a new olefin synthesis from triflones

An olefin polyanion equivalent: a new olefin synthesis from triflones. Hendrickson, James B.; Boudreaux, Gerald J.; Palumbo, Paul S.Chemical with cas number 335-05-7 also plays role. (Edison Chem. Lab., Brandeis Univ., Waltham, MA 02254, USA). Tetrahedron Lett., 25(41), 4617-18 (English) 1984. CODEN: TELEAY. ISSN: 0040-4039. DOCUMENT TYPE: Journal CA Section: 23 (Aliphatic Compounds) Polyalkylation of CF3SO2CH2SO2Me followed by regioselective Ramberg-Baecklund reaction afforded olefins R1R4C:CR2R3 [R1 = alkyl, PhCH2; R2-R4 = H, alkyl, PhCH2; R1R2 = (CH2)3, (CH2)4]. .