Journal of Organic Chemistry p. 857 - 860 (1989)
Update date:2022-09-26
Topics:
Bartsch, Richard A.
Cason, Victor C.
Czech, Bronislaw P.
An efficient, two-step synthetic method for the addition of ethyleneoxy units to diols is reported.Reaction of HOROH with Cl(CH2CH2O)nTHP and 50percent aqueous NaOH in the presence of a phase-transfer catalyst gives THP(OCH2CH2)nORO(CH2CH2O)nTHP from which the protecting groups are readily removed to provide H(OCH2CH2)nORO(CH2CH2O)n in good-to-excellent yields.The influence of reactant diol structure upon yield has been determined.
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