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15217

Sigma-Aldrich

Bis(trichloromethyl) carbonate

purum, ≥99.0% (AT)

Synonym(s):

Triphosgene, tri-Phosgene

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About This Item

Linear Formula:
Cl3COCOOCCl3
CAS Number:
Molecular Weight:
296.75
Beilstein:
1787583
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

grade

purum

Assay

≥99.0% (AT)

form

solid

mp

77-82 °C

functional group

carbonate
chloro

storage temp.

2-8°C

SMILES string

ClC(Cl)(Cl)OC(=O)OC(Cl)(Cl)Cl

InChI

1S/C3Cl6O3/c4-2(5,6)11-1(10)12-3(7,8)9

InChI key

UCPYLLCMEDAXFR-UHFFFAOYSA-N

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Application

Bis(trichloromethyl) carbonate was used in the preparation of Fmoc-amino acid chlorides. It was also used in the preparation of aryl-(Z)-vinyl chlorides.

Other Notes

Crystalline, easy-to-handle substitute for phosgene; 1 mole of the reagent corresponds in its reactivity to 3 moles phosgene

Pictograms

Skull and crossbonesCorrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 1 Inhalation - Skin Corr. 1B

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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G.B. Gill et al.
Tetrahedron Letters, 30, 3229-3229 (1989)
H. Eckert, B. Forster
Angewandte Chemie (International Edition in English), 99, 922-922 (1987)
P.R.M. Muller
Spec. Chem., 14, 357-357 (1994)
R. Cortez et al.
Synthetic Communications, 21, 285-285 (1991)
Dun Zhang et al.
The Journal of organic chemistry, 71(4), 1750-1753 (2006-02-14)
A method for the preparation of enantiomerically pure hydantoins from optically pure alpha-amino amides utilizing triphosgene is described. We also propose that the racemization observed with 1,1'-carbonyldiimidazole (CDI) for this type of reaction is due to the imidazole carbamate intermediates.

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