Produkt introduktion
4-Chlorophenyl isocyanate Basic information |
| 4-Chlorophenyl isocyanate | |
| 1-chloro-4-isocyanato-benzen;1-Chloro-4-isocyanatobenzene;1-Chloro-4-isocyanato-benzene;4-chloroisocyanatobenzene;4-Chloro-iso-cyanatobenzene;4-Chlorphenylisocyanate;benzene,1-chloro-4-isocyanato;Phenylisocyanate,4-chloro- | |
| 104-12-1 | |
| C7H4ClNO | |
| 153.57 | |
| 203-176-9 | |
| 104-12-1.mol | |
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|
| 4-Chlorophenyl isocyanate Chemical Properties |
| 26-29 degree (lit.) | |
| 203-204 degree (lit.) | |
| 1.2 g/mL at 25 degree (lit.) | |
| 30Pa at 20 degree | |
| n20/D 1.5618(lit.) | |
| >230 degree F | |
| 2-8 degree | |
| 386235 | |
| 3.12 at 22 degree | |
| 104-12-1(CAS DataBase Reference) | |
| Benzene, 1-chloro-4-isocyanato-(104-12-1) | |
| p-Chlorophenyl isocyanate (104-12-1) |
| T+,T,C | |
| 25-26-37/38-41-42-52/53 | |
| 23-26-28-36/37/39-45-61-38-37/39-28A-22 | |
| UN 2811 6.1/PG 2 | |
| 3 | |
| NQ8575000 | |
| F | 10-19-21 |
| 6.1 | |
| 29291090 | |
| 104-12-1(Hazardous Substances Data) | |
| mammal (species unspecified),LC50,inhalation,53mg/m3 (53mg/m3),Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 11(4), Pg. 23, 1967. |
| 4-Chlorophenyl isocyanate | |
| 4-Chlorophenyl isocyanate Usage And Synthesis |
| 4-Chlorophenyl isocyanate is used in the preparation of isothiocyanates. Aryl isocyanates undergo [2+2] cycloaddition reactions with dihydrofuran to give bicyclic ?-lactams in high yield. | |
| 4-Chlorophenyl isocyanate was used in the preparation of isothiocyanates. | |
| The Journal of Organic Chemistry, 34, p. 3200, 1969 10.1021/jo01262a089 | |
| Isocyanates and thioisocyanates are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Acids and bases initiate polymerization reactions in these materials. Some isocyanates react with water to form amines and liberate carbon dioxide. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence, [Wischmeyer(1969)]. | |
| Poison by ingestion and inhalation. Unspecified human systemic effects. A severe eye and moderate skin irritant. A flammable liquid when exposed to heat or flame. Dangerous, can explode on distillation. When heated to decomposition it emits toxic fumes of Cl-, CN-, and NOx. | |
| Purify the isocyanate by recrystallisation from pet ether (b 30-40o) or better by fractional distillation. TOXIC irritant. [Beilstein 12 H 616, 12 III 1376, 12 IV 1213.] |
| 4-Chlorophenyl isocyanate Preparation Products And Raw materials |
| PHOSGENE-->4-Chloroaniline | |
| Diflubenzuron-->Monolinuron-->1-(4-CHLOROPHENYL)-4,5-DIHYDRO-1H-1,2,3,4-TETRAZOL-5-ONE-->N-(4-chlorophenyl)-2-hydroxybenzamide-->N-(4-chlorophenyl)-1-Piperazinecarboxamide |
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Et par af: 2,6-Dichlorbenzoxazol
Næste: 4-Chloranilin
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