1.1- dichloro-2-methyl

C4H5F303S prop-2-enyl trifluoromethane sulfonate 41029-45-2 289.75 24.117 1.2 2818 C4H6CI2 1,1-dichloro-2-methyl-l-propene 6065-93-6 381.65 28.649 1,2... 

Methylphenyl dichlorosilane (dichloro methyl phenylsilane) [149-74-6] M 191.1, b 114-115 /50mm, 202-205 /atm, d 1.17. Purified by fractionation using an efficient column. It hydrolyses ca ten times more slowly than methyltrichlorosilane and ca sixty times more slowly than phenyltrichlorosilane [J Phys Chem 61 1591 1957]. 

Methyl vinyl dichlorosilane (dichloro methyl vinyl silane) [124-70-9] M 141.1, b 43-45.5 /ll-11.5mm, 91 /742mm, 92.5 /743.2mm, 92.5-93 /atm, d 1.0917, n 1.444. Likely impurities are dichloromethylsilane, butadienyl-dichloromethylsilane. Fractionate through a column packed... 

Diethylcadmium (in finely-divided state) Iron disulphide Dichloro(methyl)silane... 

Of particular interest in connection with the mechanism of these reactions was the isolation by Plancher and co-workers of dichloro-methyl compounds in addition to the monochloro products of ring expansion e.g., 2,3-dimethylindole (16) gave 3-dichloromethyl-2,3-dimethyhndolenine (17) and 3-chloro-2,4-dimethylquinoline (18). ... 

A mixture of 5.7 grams (0.02 mol) of 5-chloro-2,4-disulfamylaniline and 4.9 grams (0.04 mol) of dichloroacetaldehyde in 25 ml of dimethyl formamide was heated at the boiling temperature and under reflux for 30 minutes. The reaction mixture was thereafter poured into a mixture of ice and water to precipitate the desired 6-chloro-7-sulfamyl-3-dichloro-methyl-3,4-dihydro-1,2,4-benzothiadiazine-1,1-dioxide as a crystalline solid melting at 250° to 270°C with decomposition. 

Chloro-2 -trifluoroethyl dichloro-methyl ether Isoflurane... 

MalONIC ACID, ETHYLHYDROXY, DIETHYL ESTER, BENZOATE, 45, 37 Mfsitaidehydf, 47, 1 Mesitylcne, condensation with dichloro methyl methyl ether, 47, 1 Methalljl chloride in alkylation of 2,4-pentanedione with potassium carbonate, 47, 87... 

Notable examples of general synthetic procedures in Volume 47 include the synthesis of aromatic aldehydes (from dichloro-methyl methyl ether), aliphatic aldehydes (from alkyl halides and trimethylamine oxide and by oxidation of alcohols using dimethyl sulfoxide, dicyclohexylcarbodiimide, and pyridinum trifluoro-acetate the latter method is particularly useful since the conditions are so mild), carbethoxycycloalkanones (from sodium hydride, diethyl carbonate, and the cycloalkanone), m-dialkylbenzenes (from the />-isomer by isomerization with hydrogen fluoride and boron trifluoride), and the deamination of amines (by conversion to the nitrosoamide and thermolysis to the ester). Other general methods are represented by the synthesis of 1 J-difluoroolefins (from sodium chlorodifluoroacetate, triphenyl phosphine, and an aldehyde or ketone), the nitration of aromatic rings (with ni-tronium tetrafluoroborate), the reductive methylation of aromatic nitro compounds (with formaldehyde and hydrogen), the synthesis of dialkyl ketones (from carboxylic acids and iron powder), and the preparation of 1-substituted cyclopropanols (from the condensation of a 1,3-dichloro-2-propanol derivative and ethyl-... 

The reaction of (31 X = K) with chlorotrimethylstannane yields the stannylphosphine (31 X = SnMe3), which on subsequent treatment with dichloro(methyl)phosphine, is converted into the... 

See Chlorine Dichloro(methyl)arsine See Other ALKYLNON-METAL HALIDES... 

Biphilic Reactions.—A most thorough investigation into the cycloaddition of buta-1,3-diene with dichloro(methyl)phosphine (30) has revealed some of the factors which influence the composition of the final products.32 Thus the A3-phospholen 1-oxide (31) is the product of the cycloaddition at room temperature, but at 90 °C the isomeric A2-phospholen 1-oxide (32) predominates after work-up. The yields of (31) and (32) are improved by a new work-up involving methanolysis rather than hydrolysis of the intermediate salts.32... 

Synthetic studies of various cyclic phosphine oxides continue to be published. Thus a methanolic work-up leads to an 88% yield of 1-methylphospholen 1-oxides (6) from dichloro(methyl)phosphine, and detailed S1P n.m.r. and mass spectra have been described.10 The oxides (7) and (8) have been prepared11 as shown. Structural... 

Chlorine, Chlorinated pyridine, Iron powder, 4047 Chlorine, Dichloro(methyl)arsine, 4047... 

Synonyms BCME chloromethyl ether chloro(chloromethoxy)methane dichloro-methyl ether symmetrical dichloro-dimethyl ether dimethyl-1 -1dichloroether... 

Methyl N,N-dichlorocarbamate Carbamic acid, dichloro-, methyl ester (16487-46-0), 65, 159... 

Precedents for these reactions include insertion of a CHC1 group from (dichloromethyl)-lithium into the triarylborane C - B bond6 7, the preparation and reactions of achiral (dichloro-methyl)boronic esterss, and reactions of achiral boronic esters with (dichloromethyl)lithium9,10. 

It is interesting to note that the complex of the composition [CioHio(CC13)Co] obtained previously (137) by reaction of carbon tetrachloride with cobaltocene is the 1-endo-trichloromethyl analogue of complex (XXIV) this complex can be reduced by lithium aluminium hydride to the l-endo-dichloro-methyl derivative (99). 

A solution of 22.1 g 2-methyl-4-(methylthio)anisole and 17.5 g dichloro-methyl methyl ether in 600 mL CH2C12 was vigorously stirred, and treated with 24.5 g anhydrous aluminum chloride added portion-wise over the course of 1 min. Stirring was continued for 20 min while the color developed to a dark red. There was added 500 mL H,0 with caution, and stirring was continued until the initial yellow solids redissolved and there were two distinct phases formed. These were separated, and the aqueous phase was extracted with 3x100 mL CH,C12. The... 

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