3- -5-methyl- -chlori

A solution of methylmagnesium bromide in 150 ml of diethyl ether, prepared from 0.5 mol of methyl bromide (see Chapter II, Exp. 5) was subsequently added in 20 min with cooling at about 20°C. After the addition the mixture was warmed for 2 h under reflux (the thermometer and gas outlet were replaced with a reflux condenser), a black slurry being formed on the bottom of the flask. The mixture was cooled in a bath of dry-ice and acetone and a solution of 30 g of ammonium chlori.de in 200 ml of water was added with vigorous stirring. The organic layer and four ethereal extracts were combined, dried over potassium carbonate and subsequently concentrated in a water-pump vacuum. Careful distillation of the residue through a 40-cm... 

Display the dipole moment for methyl chloride. Is chlori at the -b or - end ... 

Only unrearranged cyclopropyl products were reported for photochemical chlori-nation and vapor phase nitration of cyclopropane. The Hunsdiecker reaction of silver cyclopropanecarboxylate and the thermal decomposition of cyclopropanoyl peroxide also gave exclusively unrearranged product as did the di-t-butyl peroxide initiated decarbonylation of 1-methyl and 1-phenylcyclopropanecarboxaldehyde. In general one can predict that when a good radical scavenger, solvent or substrate, is present in the reaction, unrearranged product will result (i.e. see Tables 11 and 13). 

ClSiH2SiH(Me)NSO 8. 2,2,3-trihydrido-3-methyl-4-azy-l-chlory-6-oxy-2,3- disily-5-sulfy-[6]catena... 

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