Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1998-03-03
2000-09-19
Fonda, Kathleen K.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568678, 568679, 568680, C07C 4100, C07C 4300
Patent
active
06121499&
ABSTRACT:
A process for producing polyhydroxy ethers having the formula (I) (HO).sub.(w--M) W(OV).sub.m, in which W represents an organic group and OV a structural element containing hydroxyl groups, having the formula (III) ##STR1## A multifunctional alcohol W(OH).sub.w (II) is reacted with an .alpha.,.beta.-unsaturated carbonyl compound XCH.dbd.CY--CZ.dbd.O (IV) and formaldehyde in the presence of a base. The .alpha., .beta.-unsaturated carbonyl compound (IV) and the remaining quantities of formaldehyde, multifunctional alcohol (II) and base are added continuously or periodically to an aqueous solution or suspension containing at least 10 mole % of the multifunctional alcohol (II), at least 10 to 70 mole % of the formaldehyde and at least 10 mole % of the base. Preferred multifunctional alcohols (II) are pentaerythritol, TMP and TME. Preferred carbonyl compounds (IV) are acrolein and .alpha.-alkylacrolein. New asymmetric polyhydroxy ethers are also disclosed.
REFERENCES:
patent: 5840994 (1998-11-01), Ninomiya et al.
Chemical Abstract 100:51078, XP 002070582, Dec. 19, 1977, CS 197741 B, Feb. 28, 1983.
Chemical Abstract 79-115120, XP 002070583, Jun. 22, 1973, SU 387959, Jun. 22, 1973.
Chemical Abstract 93:72341, XP 002070584, 1979, Petrochemia (1979) 19 (6), 198-206.
Arntz Dietrich
Hopp Mathias
Morawietz Marcus
Degussa - Aktiengesellschaft
Fonda Kathleen K.
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