| 摘要 |
1,206,032. Tetrahydroxylated compounds. UGINE KUHLMANN. 17 Jan., 1968 [20 Jan., 1967], No. 2592/68. Heading C2C. [Also in Division C3] Novel 1 - (hydroxyalkyleneoxy) - 2 - hydroxymethyl-2,6-hexanediols having the Formula (I) in which n is an integer between 1 and 40, R and R<SP>1</SP> each represent an atom of hydrogen or an alkyl radical having from 1 to 6 atoms of carbon, or together forming a ring constituted by an alkylene radical having 3 to 6 atoms of carbon are produced by the simultaneous hydrolysis and catalytic hydrogenation, in a non-alkaline medium, of a 1 -(hydroxy-alkylene. oxy)-6,8-dioxa bicyclo 3.2.1. octane having the Formula (II) Conventional hydrogenation catalysts are used. The above intermediate, in the case of 1- hydroxypropyleneoxymethyl-6,8-dioxa bicyelo (3.2.1) octane was formed by the addition of 1 molecule of propylene oxide to 1-hydroxymethyl-6,8-dioxa bicyclo (3.2.1) octane. Similarly 1-hydroxy-dipropyleneoxymethyl-6,8-dioxa bicyclo (3.2.1) octane was formed by the addition of 2 molecules of 1-hydroxymethyl 6,8-dioxa bicyclo (3.2.1) octane. |
