Amyl methyl propyl carbinol

Bromopentane. Proceed as for n-Amyl Bromide, but use 88 g. (108 ml.) of methyl -propyl carbinol (2-pentanol), b.p. 118-5°. During the washing with concentrated hydrochloric acid, difficulty may be experienced in separating the acid layer this is overcome by adding a little water to decrease the density of the acid. Distil the purified product through a fractionating column some amylene passes over first, followed by the 2-bromopentane at 115-118° (120 g.). 

SYNS sec-AMYL. i LCOHOL METHYL PROPYL CARBINOL D PENTANOL-2 sec-PENTYL ALCOHOL... 

Chloropentane. Use the quantities given in the previous preparation, but substitute 22 g. (27 ml.) of methyl -propyl carbinol (b.p. 118 6°) for iao-amyl alcohol. Collect the 2-chloropentane at 96-98°. 

The 2-bromopentane used in this preparation was prepared by the action of hydrobromic acid on secondary amyl alcohol (methyl -propyl carbinol) obtained from Stanco Distributors, Inc. Other commercial straight chain amyl alcohols when converted to the bromides gave a pentane boiling at 33-35°, showing that a considerable quantity of iso-pentane was present. 

Methyl propyl carbinol. See s-Amyl alcohol Methyl propylcarbinylamine. See 2-Ami nopentane... 

Methyl n-amyl carbinol from methyl n-amyl ketone) Methyl n-butyl carbinol from methyl n-butyl ketone) Methyl t o-propyl carbinol Di-n-butyl carbinol from n-butyl bromide)... 

Normal Butyl Alcohol (50% v)— Anhydrous Ethyl Alcohol (50% v) Methyl Isobutyl Carbinol (30% v)— Anhydrous Ethyl Alcohol (70% v) Methyl Isobutyl Carbinol (30% v)— Anhydrous Isopropyl Alcohol (70% v) Normal Propyl Alcohol Secondary Butyl Alcohol Normal Butyl Alcohol Methyl Isobutyl Carbinol (60% v)— Anhydrous Isopropyl Alcohol (40% v) Secondary Amyl Alcohol Amyl Alcohol (mixed isomers)... 

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