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The reaction of an organic substrate with phosgene is called phosgenation. [9] Phosgenation of diols give carbonates (R = H, alkyl, aryl), which can be either linear or cyclic: n HO−CR 2 −X−CR 2 −OH + n COCl 2 → [−O−CR 2 −X−CR 2 −O−C(=O)−] n + 2n HCl. An example is the reaction of phosgene with bisphenol A to form ...
Triphosgene (bis(trichloromethyl) carbonate (BTC)) is a chemical compound with the formula OC(OCCl 3) 2. It is used as a solid substitute for phosgene, which is a gas and diphosgene, which is a liquid. [5] [6] Triphosgene is stable up to 200 °C. [7] Triphosgene is used in a variety of halogenation reactions. [8]
Phosgene oxime can be prepared by reduction of chloropicrin using a combination of tin metal and hydrochloric acid as the source of the active hydrogen reducing agent: Cl 3 CNO 2 + 4 [H] → Cl 2 C=N−OH + HCl + H 2 O. The observation of a transient violet color in the reaction suggests intermediate formation of trichloronitrosomethane (Cl 3 ...
Key: TXJUTRJFNRYTHH-UHFFFAOYSA-N ... Properties Chemical formula. C 8 H 5 N O 3: Molar mass: 163.132 g·mol −1 Appearance white solid ... it is prepared by reaction ...
The formula for this acid is generally written H 3 PO 2, but a more descriptive presentation is HOP(O)H 2, which highlights its monoprotic character. Salts derived from this acid are called hypophosphites. [3] HOP(O)H 2 exists in equilibrium with the minor tautomer HP(OH) 2. Sometimes the minor tautomer is called hypophosphorous acid and the ...
Diphosgene is an organic chemical compound with the formula ClCO 2 CCl 3. This colorless liquid is a valuable reagent in the synthesis of organic compounds . Diphosgene is related to phosgene and has comparable toxicity , but is more conveniently handled because it is a liquid, whereas phosgene is a gas.
These reactions proceed via the intermediacy of a carbamoyl chloride (RNHC(O)Cl). Owing to the hazardous nature of phosgene, the production of isocyanates requires special precautions. [ 1 ] A laboratory-safe variation masks the phosgene as oxalyl chloride . [ 5 ]
Thiophosgene is a red liquid with the formula CSCl 2. It is a molecule with trigonal planar geometry. It is a molecule with trigonal planar geometry. There are two reactive C–Cl bonds that allow it to be used in diverse organic syntheses .