Product Properties
Bis(trichlormethyl)carbonate (BTC) or triphosgene or Carbonic acid bis-(trichlormethyl)ester or Methanoltrichloro-carbonate,CA Register number is 32315-10-9.
This product is a kind of stable white crystal with a odor of phosgene.
Melting Pointis 78-82°C
Boiling point: 203-206°C
Molecular Formula: CO(OCCl3)2
Molecular Weight: 296.75
Solid Sg: 1.78g/cm3 , and in the molten condition, the Sg is 1.629g/cm3
Structural formula:
BTC is insoluble in water and soluble in benzene, ethanol and aether, chloroform and tetrahydrofuran organic solvent. Decompose in hot water and sodium hydroxide. BTC has similar reaction performances with phosgene, can react with many compounds, such as alcohol, aldehyde, amine, acidamide.
Security & usage
1, It is second grade organic toxic matter ,CAS is 32315-10-9, U.N.:2811; In the standard of GB6944 :sixth type, No. 61908 second grade organic toxic matte, special requirement:73.
2, It is stable matter in normal temp.. Sealed, it should be stored in dry, cool and airiness place, no mixed with alkali matter.
3, Wearing the plastic coated glove and mask, do not stand at the windward place.
4, If contact with skin or eyes, washing it with water; eat or inhale, lie down and relax, breath with oxygen, or inject 20ml of 20% urotropin.
BTC applications
It is mainly applied in pesticide, medicine and organic compound, synthetic macromolecule materials.
Recent years, BTC as a new type of chemical materials has been put in a wide applications in organic synthesis.
BTC 1/3 I+ A  B I I is Bis(Trichloromethyl)Carbonate
Main Reaction of BTC as the substitute of Bis(Trichloromethyl)Carbonate:
A |
B |
Nu |
Reaction conditions |
Yield£¬% |
t,h |
T, ¡æ |
ClCC(CH3)2OH
|
Cl3CC(CH3)2OCOCl
|
C5H5N |
96 |
20 |
91 |
(ClCH2CH2)2NH |
(ClCH2CH2)2NCOCl |
C5H5N |
72 |
20 |
85 |
O-CH3C6H4NH2 |
O-CH3C6C4NCO |
Et 3 N |
2 |
70 |
82 |
CH2(C6H4NH2-p)2 |
CH2(C6H4NCO-p)2 |
A |
2
1 |
130
180 |
92
71 |
C6H4CH2CO2H |
C6H4CH2COCl |
trace quantity DMF |
24 |
60 |
74 |
|
|
Et 3 N |
8 |
20 |
94 |
|
|
Et 3 N |
2 |
20 |
|
Perforances of BTC compared with Bis(Trichloromethyl)Carbonate:
1. BTC is a stable solid under normal temperature, easy to store and transport. It is safe and has no pollution.
2. Use the BTC materials in the production, the lowering of charge is accurate.
Our BTC Products Quality Index:
Index name |
Premium grade |
Appearance |
white crystal |
Assay |
≥99.5% |
Melting point |
79-81°C |
Loss on dry |
≤0.5% |
Acid value |
≤0.1% |
Packing: 25Kg/barrel |
