Bis 2-chloropropyl

A variant of the Mannich reaction using an equilibration between phosphorus acid and a trialkyl phosphite was developed [36]. The trialkyl phosphite was synthesised in situ by the reaction of phosphorus trichloride with PO, with the formation of tris (2-chloropropyl) phosphite (reaction 18.14). By equilibration of phosphorus acid with tris (2-chloropropyl) phosphite, bis (2-chloropropyl) phosphite (reaction 18.15) is formed which, by reaction with oxazolidine, gives an interesting phosphonate polyol containing phosphorus, chlorine and nitrogen (reaction 18.16) ... 

Note Technical grade bis(2-chloroisopropyl) ether contains the isomer 2-chloro-l-methylethyl(2-chloropropyl) ether (< 30 wt %). 

Sulfur mustard 11 Sulfur nitride Sulfur nitride Sulfur nitride Mustard gas 11, 2,2 -Dichlorodipropyl sulfide, Bis(beta-chloropropyl) sulfide... 

Other flame-retardants selected as priority chemicals for the EU Risk Assessment process included tetrabromobisphenol A (TBBPA), hexabromocyclododecane (HBCD), tris(2-chloroethyl) phosphate (TCEP), tris (2-chloropropyl) phosphate (TCPP), tris(2-chloro-l-(chloromethyl)ethyl) phosphate (TDCP), and 2,2-bis(chloromethyl) trimethylene bis (bis(2-chloroethyl)phosphate) (V6). The flame-retardant synergist, antimony trioxide (Sb ), was also identified as a priority substance. Table 22.1 contains information on the EU Risk Assessments on the nine flame-retardants and one synergist. 

Bis[2-benzoyloxy-3-chloropropyl] Ditellurium1 In a 250 ml separatory funnel are placed 0.80 g (1.85 mmol) of 2-benzoyloxy-3-chloropropyl tellurium trichloride, 40 ml of dichloromethane, and 30 ml of 20% (w/v) aqueous sodium sulfide nonahydrate solution. The mixture is shaken until all solids have dissolved, the organic layer is separated, dried, and the solvent evaporated. The product is purified by passing it through a short column of silica with dichloromethane as the mobile phase. The orange-red colored fractions are evaporated to leave a red oil yield 0.48 g (80%). 

Benzo-14S4 4,7-dithiadodecane-1,12-ditosylate 1.2- Bis((3-chloropropyl)thio)benzene + 1.2- ethanedithiol... 

Benzo-9,10 -cis-cyclohexano-14S4 2.3- Benzo-9,10-trans-cyclohexano-14S4 1.2- Bis((3-chloropropyl)thio)benzene + ds-1,2-cyclohexanedithiol 1.2- Bis((3-chloropropyl)thio)benzene + trans-1,2-cy clohexanedithiol... 

The primary arsine (89) was synthesized from sodium arsenide (NaAsH2) and (3-chloro-propyl)phenyl sulfide in liquid ammonia. Without isolation, (89) was converted into the bis(3-chloropropyl)arsine (90) and subsequently into the 14-membered crystalline heterocycle (91) under the usual conditions with bis(2-thiolethyl) sulfide (Scheme 15). 

The new compound 3-[(2,2-dimethyl-l,2-azasilolidin-l-yl)dimethylsilyl]-l-propanamine 1 is readily prepared from (3-chloropropyl)dimethylchlorosilane or bis(3-chloropropyl)tetramethyl-disilazane, respectively. The educts are reacted with excess ammonia (molar ratios 1 20 to 1 150) at pressures ranging from 30 to 200 bar and temperatures of 60 to 200 °C (Scheme 1) [2]. 

Figure 6 Element specific detection by GC AED assisting in the interpretation of a complex GC-MS chromatogram from the analysis of a wastewater sample. Peaks 1, tribu-tylphosphoric acid 2, tris(2-chloroethyl)phosphate 3, hexachlorocycloh exane 4, tris(2-chloro-1-methyl-ethyl) phosphate 5, bis(2-chloro-l-methyl-ethyl)(2-chloropropyl)phos-phate 5, bromophos-ethyl and 7, tris(2-butoxyethyl) phosphate. (From Ref. 26.)...

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