Lauryl bromide

Reflux 6.9 g triphenylphosphine and 6.6 g lauryl bromide (or equimolar amount of homolog) in 40 ml xylene for 60 hours. Remove solvent and wash residue with 5X20 ml ether (by decanting) to get 11 g lauryl triphenylphosphonium bromide (I). To a stirred suspension of 5.6 g (0.011M)(I) in 50 ml ether add 0.01M butyllithium solution (see Organic Reactions 8,258(1954) for preparation). Stir Vz hour at room temperature and slowly add 1.66 g 3,5-dimethoxybenzaldehyde (preparation given elsewhere here) in 10 ml ether over Vi hour. After 15 hours, filter, wash filtrate with water and dry, evaporate in vacuum. Dilute residue with pentane, filter and remove solvent. Dissolve the residual oil in 25 ml ethyl acetate and hydrogenate over O.lg Adams catalyst at one atmosphere and room temperature for 2 hours. Filter and evaporate in vacuum to get the 5-alkylresorcinol dimethyl ether which can be reciystallized from pentane and demethylated as described elsewhere here. 

Laurylamine, d732 Lauryl bromide, b275 Lauryl mercaptan, d725 Lauryl sulfate, d735 Lepidine, m408 Leucinol, a217 Levulinic acid, o58 Linoleic acid, ol Linolenic acid, o7... 

Lauryl alcohol, I, 7 Lauryl bromide, I, 7 Lime nitrogen, V, 45, 46... 

Lachrymation, 7, 16 Lauryl alcohol, 1, 7 Lauryl Bromide 1, 7 Lead nitrate, 6, 72 Ligroin, 8, 39... 

Cordes, etal also employed poly-4-vinylpyridine alkylated with lauryl bromide and ethyl bromide (PVP-Ljj, 27) for the hydrolysis of p-nitrophenyl hexanoate (23,... 

Laccaic acid, 537 a-Lactams, 756, 924, 8-Lactams, 234 Lactose, 61,1171 A .8( )-Lanostadiene, 151 A -Lanostene derivative, 468 Lanosterol, 916 5o-Lanosteryl 3 3-formate, 599 Laudanosine, 1106 methochloride, 1106 Laurie acid, 648-649, 666,1263, 1271 Laurone, 1199 Lauroyl azide,1041,1042 Lauroyl chloride, 1041, 1042,1199 Lauryl alcohol, 453 Lauryl bromide, 453, 1165 Lauryl mercaptan, 1165 Lazier catalyst, see Copper chromite Lead acetate trihydrate, 433,532-533 Lead dioxide, 215, 347, 409, 533-536, 537, 543, 554... 

Preparation of mercaptans (thiols). An alkyl halide, for example lauryl bromide, reacts with thiourea to give the isothiourea hydrobromide, which on alkaline hydrolysis affords the mercaptan. In the preparation of lauryl mercaptan the... 

Reflux 6.9 g triphenylphosphinc and 6.6g lauryl bromide (or equimolar amount of homolog) in 40 ml xylene for 60 hours. Remove solvent and wash residue with 5X20 ml ether (by decanting) to get llg lauryl triphenylphosphonium bromide(I). 

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