112-59-4Relevant articles and documents
Synthesis of acyclic quaternary ammonium compounds containing ω-alkoxyethyl and 2-hydroxyethyl substituents at the nitrogen atom
Tcarkova,Belus’,Artyushin,Kharlamov,Bondarenko
, p. 2697 - 2701 (2015)
A series of acyclic symmetric quaternary ammonium chlorides Me2(HOCH2CH2)N+(CH2CH2O)nR Cl– (n = 1, R = n-C9H19; n = 2, R = n-C6H13; n = 3, R = n-C3H7) was synthesized by alkylation of the corresponding tertiary amines Me2N(CH2CH2O)nR with ethylene chlorohydrin in a two-phase system, using water as a solvent. The tertiary amines were synthesized in a heterogeneous system organic phase—aqueous phase, using an aqueous solution of Me2NH and a solid alkali. The intermediate monoethers of ethylene, diand triethylene glycol were obtained in high yield via a phase-transfer alkylation in dioxane, using solid KOH. The proton and carbon atom signals in the NMR spectra of the synthesized amines and ammonium chlorides were assigned based on the data of heteronuclear correlations (1H, 13C).
Topical mosquito repellents VII: Alkyl triethylene glycol monoethers
Johnson,DeGraw,Engstrom,Skinner,Brown,Skidmore,Maibach
, p. 693 - 695 (2007/10/05)
Normal and branched chain aliphatic monoethers of triethylene glycol are effective topical mosquito repellents. In terms of duration of protection, they are generally superior to the corresponding diethylene glycol analogs, and some are superior to diethyltoluamide. The n heptyl monoether of triethylene glycol affords double the protection time of diethyltoluamide under controlled laboratory conditions, and appears to be a useful new mosquito repellent.