A REVIEW AND METHODS TO HANDLE PHOSGENE, TRIPHOSGENE SAFELY DURING DRUG SYNTHESIS

New Drug Approvals

Phosgene

Phosgene is the chemical compound with the formula COCl2. This colorless gas gained infamy as a chemical weapon during World War I. It is also a valued industrial reagent and building block in synthesis of pharmaceuticals and other organic compounds. In low concentrations, its odor resembles freshly cut hay or grass.[3] In addition to its industrial production, small amounts occur naturally from the breakdown and the combustion oforganochlorine compounds, such as those used in refrigeration systems.[4] The chemical was named by combining the Greek words ‘phos’ (meaning light) and genesis (birth); it does not mean it contains any phosphorus (cf. phosphine).

TRIPHOSGENE

Triphosgene (bis(trichloromethyl) carbonate (BTC), C3Cl6O3) is a chemical compound that is used as a safer substitute for phosgene, because at room temperature it is a solid crystal, as…

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