Detail of "934-31-6"

CAS Number:
934-31-6
Name:
1,3-Dithiole-4,5-dicarbonitrile,2-oxo-
Molecular Structure:
Formula:
C5N2 O S2
Molecular Weight:
168.1963
Synonyms:
Carbonicacid, dithio-, cyclic S,S-dicyanovinylene ester (6CI); Carbonic acid, dithio-,cyclic S,S-ester with 2,3-dimercapto-2-butenedinitrile (8CI); Carbonic acid,dithio-, cyclic S,S-ester with dimercaptomaleonitrile (7CI); 2-Butenedinitrile,2,3-dimercapto-, cyclic dithiocarbonate (8CI); 4,5-Dicyano-1,3-dithiolen-2-one
Density:
1.7 g/cm³
Melting Point:
124 °C
Boiling Point:
268.6 °C at 760 mmHg
Flash Point:
116.2 °C

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4,5-Dicyano-1,3-dithiol-2-one

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1,4-Dithiino[2,3-c; 6,5-c']diisothiazole and related compounds: 1,4-Dithiino[2,3-c; 6,5-c']diisothiazole and related compounds. Vladuchick, Susan Anne (du Pont de Nemours, E. I., and Co., USA). U.S. US 4067879 10 Jan 1978, 9 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C07D513-14. NCL: 260302000F. APPLICATION: US 75-625132 23 Oct 1975. DOCUMENT TYPE: Patent CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) Section cross-reference(s): 35, 28, 42 I (R = CN) (II) [63419-80-7] is prepd. from tetracyano-1,4-dithiin (III) [2448-55-7] or 4,5-dicyano-1,3-dithiolen-2-one [934-31-6] and S and used to prep. I where R = COCl (IV) [63419-83-0], CO2R1, CONR1R2, or CO2M (R1,R2 = Alkyl, substituted Ph, or H and M = H (V) [63419-82-9], alkali metal, or tetraalkylammonium), many of which are fluorescent compds. which may be used as dyes or pigments or in polyamide prepn. The title compd. [63419-81-8] is also obtained from II. Thus, a mixt. of 900 mL MeO(CH2)2OMe, 20.25 g S, and 2.7 g NaI was refluxed 5 h, 32.4 g III added, and refluxing continued 20 h to give 100% II. II was converted to IV and then (with Me2NH [124-40-3]) to the tetramethyl dicarboxamide deriv. [63419-84-1], which was a fluorescent whitener for fabrics. A fluorecent polyamide [66229-02-5] was prepd. from IV and trans-2,5-dimethylpiperazine. I was incorporated into a fade- and chem.-resistant coating compn.

Halogen-containing polymer compositions for vulcanization: Halogen-containing polymer compositions for vulcanization. (Osaka Soda Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 58142926 A2 25 Aug 1983 Showa, 5 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08L027-06; C08K003-22; C08K003-24; C08K005-45. APPLICATION: JP 82-26531 19 Feb 1982. DOCUMENT TYPE: Patent CA Section: 39 (Synthetic Elastomers and Natural Rubber) The title compns.Several substances with their cas registry numbers 934-31-6 and 1309-48-4 may be metioned in this study. contain halogen-contg. polymers, 4,5-dicyano-1,3-dithia-4-cyclopenten-2-one (I) [934-31-6] or 4,5-dicyano-1,3-dithia-4-cyclopentane-2-thione [1005-10-3], and inorg. basic compds. as acid acceptors. Thus, Neoprene W 100, FEF carbon black 20, CaCO3 90, dioctyltin distearate lubricant 1, trioctyl trimellitate 15, phenyl-b-naphthylamine 1, Ca silicate 10, pentaerythritol 0.5, and I 0.5 part were kneaded at 60-70° to give a sheet, which was compression molded 30 min at 155° and 80 kg/cm2 to give a vulcanized shape showing excellent tensile strength and other phys. properties. .