1885-20-7

Usage

Chemical structure

Derived from benzene with two chlorine and two carbonyloxy functional groups

Physical state

White crystalline solid

Uses

a. Production of rubber
b. Chemical intermediate in the synthesis of pharmaceuticals and dyes

Reactivity

Capable of reacting with a variety of reagents

Environmental and health hazards

Potential hazards, should be handled with care to avoid exposure

Functional groups

a. Chlorine (Cl)
b. Carbonyloxy (C=O)

Upstream product

• 75-44-5 phosgene 
• 123-31-9 hydroquinone 

Downstream Products

• 94543-23-4 1,4-bis-phenylcarbamoyloxy-benzene 

Relevant academic research and scientific papers

Photolysis of p-Phenylbis(chlorodiazirine), Studied by Matrix Isolation Spectroscopy. Generation, Detection and Characterization of p-Phenylenebis(chloromethylene)

Photolysis of the title bis-diazirine matrix-isolated in Ar at 10 K monitored by IR and UV/vis spectroscopy indicated that the diazirine underwent stepwise elimination of N2 to produce 3-(4-chlorocarbenophenyl)-3-chlorodiazirine which then eliminated the

Method for preparing hydroquinone and hydroquinone-bisphenol a Bischloroformates

Bischloroformates of bisphenol compositions comprising hydroquinone or a hydroquinone-bisphenol A mixture are prepared by passing phosgene into a vigorously agitated mixture of water, an alkaline earth metal hydroxide, the bisphenols and a substantially inert, water-immiscible organic liquid such as methylene chloride. The molar ratio of water to alkaline earth metal hydroxide is in the range of about 3-8:1. The bisphenols and at least a portion of the organic liquid are preferably initially present in the reaction mixture, and the alkaline earth metal hydroxide is preferably added during phosgenation.

Process for preparing hydroxylated aromatic compounds

A process for preparing hydroxylated aromatic compounds optionally bearing at least one trifluoromethyl, trifluoromethoxy or trifluoromethylthio group. A chloroformate or fluoroformate, optionally bearing at least one trihalomethyl-, trihalomethoxy- or trihalomethylthiophenyl group, is reacted with liquid hydrofluoric acid. The aromatic compounds obtained are useful as synthesis intermediates in the pharmaceutical or the plant-protection industry.

Bis(aminoneopentyl) aromatics

Aromatic-aliphatic diamines of the formula STR1 in which Ar is an arylene or substituted arylene are useful in preparing thermally stable, rigid, polyamides, polyureas and polyurethanes having a repeating unit of the formula STR2 in which Ar is arylene or substituted arylene, X is --NH-- or --O--, n is 0 or 1, and R is a divalent organic radical.