Contact us: +91 9550333722 040 - 40102781
Structured search
India
Choose your country
Different countries will display different contents
Try our best to find the right business for you.
My chemicalbook

Welcome back!

HomeProduct name listTriphosgene

Triphosgene

Synonym(s):Bis(trichloromethyl) carbonate;Triphosgene;tri-Phosgene;Triphosgene, Carbonic acid bistrichlor methyl ester

  • CAS NO.:32315-10-9
  • Empirical Formula: C3Cl6O3
  • Molecular Weight: 296.73
  • MDL number: MFCD00062848
  • EINECS: 250-986-3
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-10-25 16:21:11
Triphosgene Structural

What is Triphosgene?

Description

Triphosgene is also known as solid phosgene. Its chemical name is bis (Trichloromethyl) carbonate, and its English name is bisgriehloromethyl) carbonate or triphosgene, abbreviated as BTC. Triphosgene is a white crystal, similar to the smell of phosgene. It is mainly used to synthesize chloroformate, isocyanate, polycarbonate and acyl chloride. It is widely used as an intermediate in plastics, medicine, herbicides and pesticides.

Chemical properties

White solid

The Uses of Triphosgene

Triphosgene is used as a carbonylating agent for aza-peptide synthesis. It reacts with several alfa-amino acids to give the corresponding N-carboxyanhydrides. It is involved in the preparation of the esterification coupling reagent, di-2-thienyl carbonate from 2(5H)-thiophenone. Further, it is used as a reagent in organic synthesis and converts an amino group into isocyanate. In addition to this, it is employed in the preparation of 2-chloronicotinaldehydes through cyclization of the corresponding enamides. It is considered as a useful substitute for phosgene.

The Uses of Triphosgene

Triphosgene
To a solution of triphosgene (26.4 mg, 0.090 mmol) in ACN (1 mL) at -5 C was added a solution of B (91.6 mg, 0.26 mmol) and TEA (73.2 uL) in ACN (1 mL) over 5 min. Then was added a solution of A (125 mg, 0.090 mmol) and TEA (73.2 uL) in ACN (1 mL). The reaction mixture was slowly warmed to RT and stirred for 3 h. The mixture was concentrated and the resulting material was purified by RP-HPLC to provide the product as a flaky shiny white solid. [132 mg, 75%]

The Uses of Triphosgene

An efficient carbonylating agent for liquid and solid-phase aza-peptide synthesis.

The Uses of Triphosgene

Triphosgene can be employed as a reagent to prepare:

  • Thiocarbonates from thiols and alcohols by one-pot, three-component reaction.
  • Substituted azetidin-2-ones from acids and imines via ketene–imine cycloaddition reaction.
  • Methyl (S)-2-isocyanato-3-phenylpropanoate from L-phenylalanine methyl ester hydrochloride in the presence of sodium bicarbonate.
  • Acyl azides derivatives from various carboxylic acids and sodium azide.
  • Immunosuppressant agent cyclosporin by solid-phase peptide synthesis.
  • Allyl azides from allyl alcohols and sodium azide in one pot method.
  • Esterification coupling reagent di-2-thienyl carbonate, from 2(5H)-thiophenone.
  • 2-Chloronicotinaldehydes via cyclization of the corresponding enamides.

What are the applications of Application

Triphosgene is an efficient carbonylating agent

Reactions

The Triphosgene reaction is quenched very carefully by dropwise addition of 75 mL of saturated aqueous sodium sulfate solution  (Notes 5 and 6). The resulting white granular precipitate or slurry is  removed by vacuum filtration through Celite, and the filter cake is  washed with three portions of 75 mL of chloroform .

General Description

Triphosgene [Bis(trichloromethyl)carbonate] is a versatile organic reagent used in organic synthesis alternative to phosgene. A catalytic amount of triphosgene is particularly used in chloroformylations, carbonylations, chlorinations, and dehydration reactions.

Safety

Triphosgene's low vapor pressure makes it possible for it to reach concentrations that are considered toxicologically unsafe. While several properties of triphosgene are not yet readily available, it is known that it is extremely toxic if inhaled. A toxic gas is emitted if it comes in contact with water. There is a lack of information and variability regarding the proper handling of triphosgene. It is assumed to have the same risks as phosgene.

Synthesis

Triphosgene is synthesized by exhaustive free radical chlorination of dimethyl carbonate:
CH3OCO2CH3 + 6 Cl2 → CCl3OCO2CCl3 + 6 HCl
Triphosgene can be easily recrystallized from hot hexanes. 

Purification Methods

It is a good solid substitute for phosgene (using a third mol per mol). Crystallise it from pet ether (b 60-80o), wash it with anhydrous cold Et2O, de-gas it at 200mm then dry at 0.1mm (over H2SO4). It has IR: max 900 and 1900 cm-1 . It is a lachrymator, is TOXIC and should be handled with gloves and in an efficient fume hood. [Hales et al. J Chem Soc 620 1957, Eckert & Forster Angew Chem, Int Ed Engl 26 894 1987, Aldrichimica Acta 21 47 1988, Beilstein 3 H 17, 3 I 8, 3 II 16, 3 III 36, 3 IV 33.]

Properties of Triphosgene

Melting point: 79-83 °C (lit.)
Boiling point: 203-206 °C (lit.)
Density  1.78
vapor pressure  16 hPa (90 °C)
Flash point: 203-206°C
storage temp.  2-8°C
solubility  Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
appearance White solid
form  Crystalline Powder, Crystals and/or Chunks
color  White to off-white
Water Solubility  practically insoluble
Sensitive  Moisture Sensitive
BRN  1787583
CAS DataBase Reference 32315-10-9(CAS DataBase Reference)
EPA Substance Registry System Methanol, trichloro-, carbonate (2:1) (32315-10-9)

Safety information for Triphosgene

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
ghs
Skull and Crossbones
Acute Toxicity
GHS06
GHS Hazard Statements H314:Skin corrosion/irritation
H330:Acute toxicity,inhalation
Precautionary Statement Codes P260:Do not breathe dust/fume/gas/mist/vapours/spray.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for Triphosgene

InChIKey UCPYLLCMEDAXFR-UHFFFAOYSA-N

Abamectin manufacturer

Evans Fine Chem

1Y
Phone:+919821340302
Whatsapp: +91 9821340302
product: 32315-10-9 Triphosgene 99%
Inquiry

JSK Chemicals

1Y
Phone:+919879767970
Whatsapp: +91 9879767970
product: 32315-10-9 99%
Inquiry

Otto Chemie Pvt Ltd

1Y
Phone:+91-2266382599
product: Triphosgene 98%
Inquiry

Dhara Industries

1Y
Phone:+91-9322395199
Whatsapp: +91 9322395199
product: Triphosgene 99%
Inquiry

ADAARSH PHARMA

1Y
Phone:+91-9133632777
Whatsapp: +91- 9133632777
product: 32315-10-9 Triphosgene 99%
Inquiry

SS Reagents and Chemicals

1Y
Phone:+91-7981238883
Whatsapp: +91-7981238883
product: 32315-10-9 Tri Phosgene 99%
Inquiry

Anand Agencies

Maharashtra
Phone:91-9075014125
Whatsapp: 91-9075014125
product: Triphosgene
Inquiry

ASM Organics

Andhra Pradesh
Phone:91-9866122393
Whatsapp: 91-9866122393
product: Triphosgene
Inquiry

Related products of tetrahydrofuran

You may like

Statement: All products displayed on this website are only used for non medical purposes such as industrial applications or scientific research, and cannot be used for clinical diagnosis or treatment of humans or animals. They are not medicinal or edible.