1 ’-Chloro- 1-methyl-benzene

The interaction of sodium perthiocyanate (438) and suitable bifunctional dihalides readily produces polymers (444) which are claimed to be useful catalysts in the production of polyurethane foams. The use of l,4-di(chloro-methyl)benzene in ethanol, for example, gives 444 (R = p-CH2C6H4CH2, terminating in p-CH2C6H4CH2OEt, mol wt 2960) in 90% yield.354 5-Mercapto-3-methylthio-1,2,4-thiadiazole yields the tin-containing derivatives 445 (R = Bu, Ph, or cyclohexyl n = 1-3) on treatment with alkyltin halides in tetrahydrofuran.355... 

The synthesis of 3-arm P2VP stars using l,3,5-tri(chloro-methyl)benzene, as well as the synthesis of 4-arm poly (tert-butylmethaciylate) (PtBuMA), poly(methyl methacrylate) (PMMA), and P2VP stars using l,2,4,5-tetra(bromomethyl)ben-zene, was reported (Scheme 9). Combined characterization results revealed that the use of bromo- instead of chloro-deiivatives and low temperatures leads to well-defined products. 

All lation of palladium(II)-coordinated phosphane ligands with l,2-bis(chloro-methyl)benzene gives rise to new chelate rings and coincidentally to the macrocyclic complex [Pd(L1216)](HC03)2 (Eq. 5.5). 

We note that while tin reagents have often been employed for the organoboron halides/ the use of organostannanes as starting materials can also be applied to the synthesis of heavier group 13 derivatives. In the context of polyfunc-tional Lewis acid chemistry, this type of reaction has been employed for the preparation of ort/ o-phenylene aluminum derivatives. Thus, the reaction of 1,2-bis(trimethylstannyl)benzene 7 with dimethylaluminum chloride, methylaluminum dichloride or aluminum trichloride affords l,2-bis(dimethylaluminum)phenylene 37, l,2-bis(chloro(methyl)aluminum)phenylene 38 and 1,2-bis(dichloroalumi-num)phenylene 39, respectively (Scheme 16). Unfortunately, these compounds could not be crystallized and their identities have been inferred from NMR data only. In the case of 39, the aluminum derivative could not be separated from trimethyltin chloride with which it reportedly forms a polymeric ion pair consisting of trimethylstannyl cations and bis(trichloroaluminate) anions 40. 

SYNTHESIS OE Dl-/i-CHLORO-BlS[CHLORO(f -l-lSOPROPYL-4-METHYL-BENZENE)RUTHENlUM(ll)] ... 

DinitTO-l,3-(diamino-N,N,N, N -tetra-methyl)-benzene, yel nds (from chlf + ale), mp 191° sol in chlf si sol in hot ale was prepd by heating l,3-dinitro-4,6-dichlorobenzene with dimethylaniline in ale or from 2,4-dinitro-5-chloro-N,N- iimethylani-line 8c NH(CH3)2 (Ref 2)... 

Chlorine atoms are easily substituted by fluorine in methyl- and polymethyl(trichloro-methyl)benzenes with evolution of heat to give l-methyl-2-(trifluoromcthyl)benzene,8 4-chloro-2-methyl-l-(trifluoromethyl)benzene,9 4-chloro-l-methyl-2-(trifluoromethyl)benzenc.10 1,3,5-trimethyl-2-(trifluoromethyl)benzene,11 I. S -tctramethyl-S trifluoromethyObenzene,11 and 2-methyl-4-phenyl-l-(trifluoromethyl)benzene8 in 50-60% yield. 

Benzyl Chloride a>- Cblorotoluene or l -Chloro l-methyl-benzene, CgHg.CH. Cl col liq with pungent odor, d 1.00 at 20/20, fr p -39°, bp 179.4° misc with ale, eth or chlf insol in w. Other props and various methods of prepn are discussed in Ref 1 its toxicity, fire expln hazards are given in Ref 2... 

Decomposition of benzoyl peroxide in hexamethyldisilane at 80° C gives, as major products, benzene, benzoic acid, l,2-bis(pentamethyldisilanyl)-ethane and benzylpentamethyldisilane (151). The reaction of hexamethyldisilane in carbon tetrachloride with benzoyl peroxide (at reflux temperature) and with di-tert-butyl peroxide (in a sealed tube at 129° C) gives (chloro-methyl)pentamethyldisilane as the main product arising from the silane (150). In no case are rearrangement products formed. Therefore, in solution at relatively low temperature, the pentamethyldisilanylmethyl radical does not undergo rearrangement as in the thermolysis. The main fate of this free radical is dimerization in the absence of solvent or chlorine atom abstraction when carbon tetrachloride is present. 

Permanent Red 2B (Barium Red 2B, PR 48 1, Cl No. 15865 1 Calcium Red 2B, PR 48 2, Cl No. 15865 2 Manganese Red 2B, PR 48 4, Cl No. 15865 4). Discovered by DuPont in the early 1920s the permanent red 2B pigments are azo reds prepared from coupling diazotized l-amino-3-chloro-4-methyl benzene sulfonic acid onto 3-hydroxy-2-naphthoic acid (BON).The barium salt is characterized by a clean, yellow hue as compared to the bluer calcium salt. The barium salt has a poorer lightfastness and weaker tinting strength however the barium salt will provide better heat stability in certain polymer systems. The calcium salt provides the most widely used blue-shade red. 

Vinylchlorosilanes undergo Friedel-Crafts alkylation with aromatic compounds in the presence of Lewis acids to give 2-(chlorosilyl)ethylarenes [Eq. (17)].lb 32,33 The reactivity of vinylchlorosilanes for the alkylation of aromatic compounds is slightly lower than that of allylchlorosilanes.lb 3,32 The reactivity of vinylsilanes for alkylation depends on the substituents on the silicon of the vinylsilane. The reactivity of vinylchlorosilanes decreases in the following order dichloro(methyl)vinyl-silane > trichlorovinylsilane > chloro(dimethyl)vinylsilane. The alkylation of mono-substituted benzenes such as toluene, chlorobenzene, and biphenyl with di-chloro(methyl)vinylsilane (lc) at 75-80 °C for 2h affords alkylated products in 50-63% yields.32... 

The inifer technique is specific for cationic and radical polymerizations. The most frequently used inifers in the first case are 1-chloro-l-methyl-ethylbenzene (a) 1,4-bis( 1-chloro-l-methylethyl)benzene (6) and l,3,5-tris(l-chloro-l-methyl)benzene (c)... 

BRONZE SCARLET 5-CHLORO-2-((2-HYDROXY-l-NAPHTHALENYL)AZO)-4-METHYLBENZENE SULFONIC ACID, BARIUM SALT (2 1) 5-CHLORO-2-((2-HYDROXY-l-NAPHTHALENYL)AZO)-4-METHYL-BENZENE SULPHONIC ACID, BARIUM SALT l-(4-CHLORO-o-SULFO-5-TOLYLAZO)-2-iNAPHTHOL,-BARIUM SALT C.I. PIGMENT RED COSMETIC CORAL RED KO BLUISH DAINTCHI LAKE RED C D C RED No. 9 DESERT RED ELJON LAKE RED C... 

SYNS BENZENE, l-CHLORO-4-(TRICHLOROMETH-YL)-(9CI) p-CHLOROBENZOTRICHLORIDE 4-CHLOROBENZOTRICHLORIDE p-CHLOROPHENYL-TRICHLOROMETHANE l-CHLORO-4-(TRICHLORO-METHYL)BENZENE p,a-a-a-TETRACHLOROTOLU-ENE a-a-a-4-TETRACHLOROTOLUENE TOLUENE, O-a-a-p-TETRACHLORO-... 

MWP. However, the quantity of chlorinated hydrocarbons during MWP degradation was higher than 3P/PVC/PET and 3P/PVC degradation liquid products. Gas chromatography equipped with an atomic emission detector (GC-AED), was used for selective detection of Cl in the liquid products. As can be seen from Figure 18.19, the presence of PET produced the additional chlorinated hydrocarbons than 3P/PVC. The liquid products were analyzed by GC-MS to identify the compounds. The presence of chlorinated compounds with model and MWP were observed as 2-chloro-2-phenyl propane, 2-chloro-2-methyl propane, 2-chloro-2-methyl pentane, and a-chloro ethyl benzene. 

C7H5CIF3N 2-chloro-5-(trifluoromethyl)aniline 121-50-6 25 00 1.4280 1 10039 C7H5I3 1,3,5-triiodo-2-methyl benzene 36994-79-3 25.00 2.6637 2... 

C7H6CII 1-chloro-2-iodo-4-methyl benzene 2401-22-1 522.15 46.016 1,2 10320 C7H6F3N 2-(trifluoromethyl)aniline 88-17-5 460.15 40.069 2... 

C7H6CII 4-chloro-2-iodo-1-methyl benzene 33184-48-4 515.65 45.390 1,2 10322 C7H6F3N 4-(trifluoromethyl)aniline 455-14-1 460.15 40.069 2... 

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