Hayashi, Yoshiyuki published the artcilePreparation of tertiary amines having different substituents from quaternary 2-hydroxyethylammonium salts, Related Products of alcohols-buliding-blocks, the publication is Yukagaku (1987), 36(6), 409-12, database is CAplus.
N,N-Disubstituted ethanolamines readily and quant. reacted with alkyl halides to give quaternary 2-hydroxyethylammonium halides. The quaternary salts, when treated with a small excess of KOH at 120°, afforded tertiary amines in high yields, accompanied by the evolution of ethylene oxide. Thus, Me(CH2)9NMeCH2CH2OH was treated with PhCH2Cl to give 93% PhCH2[Me(CH2)9]N+MeCH2CH2OH Cl–, which was heated at 120° with KOH to give 90% Me(CH2)9NMeCH2Ph. N,N-Dimethylalkylamines were also prepared quant. in a one-pot reaction procedure from N,N-dimethylethanolamine and alkyl halides.
Yukagaku published new progress about 101-98-4. 101-98-4 belongs to alcohols-buliding-blocks, auxiliary class Amine,Benzene,Alcohol, name is 2-(Benzyl(methyl)amino)ethanol, and the molecular formula is C10H15NO, Related Products of alcohols-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts