Detail of "25343-70-8"
- CAS Number:
- 25343-70-8
- Name:
Benzene,2-isothiocyanato-1,3-bis(1-methylethyl)-
- Molecular Structure:
- Formula:
- C13H17NS
- Molecular Weight:
- 219.35
- Synonyms:
- Isothiocyanicacid, 2,6-diisopropylphenyl ester (8CI);2,6-Diisopropylphenyl isothiocyanate;
- Density:
- 0.98 g/cm3
- Boiling Point:
- 306.5 °C at 760 mmHg
- Flash Point:
- 144.3 °C
- Transport Information:
- UN 2810
Benzene,2-isothiocyanato-1,3-bis(1-methylethyl)-
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Reference
- Process for the preparation of aryl isothiocyanates from arylamines and carbon disulfide
- Process for the preparation of aryl isothiocyanates from arylamines and carbon disulfide. Shin, Kju H. (Ethyl Corp., USA). U.S. US 4636574 A 13 Jan 1987, 3 pp. 25343-70-8 and 86519-30-4 are also occured in this study. (United States of America) CODEN: USXXAM. CLASS: ICM: C07C161-04. NCL: 558018000. APPLICATION: US 85-794855 4 Nov 1985. DOCUMENT TYPE: Patent CA Section: 25 (Benzene, Its Derivatives, and Condensed Benzenoid Compounds) Aryl isothiocyanates are prepd. by reaction of primary arylamines with CS2 in the presence of a tertiary amine. A mixt. of 2,6-(Me2CH)2C6H3NH2 (I) 1, CS2, 1.6, and EtOH 4.4 mol. equiv. was refluxed for 1.5 h to show I and 2,6-(Me2CH)2C6H3NCS (II) in an area % ratio of 5.3:1 by gas chromatog., and then CS2 (7 mol. equiv.) was added over an addnl. 55 h to give a I/II ratio of 1:1.7. Et3N (0.3 mol. equiv.) was added, reaction was continued for another 17 h (I/II = 1:8.9), 0.3 mol. equiv. addnl. Et3N was added, and the reaction was continued for 6.5 h to give a final ratio of 1:9.4. II was formed in 74% yield with essentially no other products. .