6533b82bfe1ef96bd128d5a5
RESEARCH PRODUCT
Eine oligomeranaloge friessche umlagerung oligomerer 2-acetoxy-1,3-phenylenmethylene
Hermann KämmererVolker BöhmerHeinz Everssubject
chemistry.chemical_compoundAcetic anhydridechemistryAtmospheric pressureFries rearrangementCondensationPolymer chemistryOrganic chemistryPhenolHydroxymethylHydrochloric acidOligomerdescription
α-Hydro-ω-hydroxypoly(5-chloro-2-hydroxy-1,3-phenylenemethylene)s (1a, b), the oligomeric condensation products from 4-chloro-2,6-bis(hydroxymethyl)phenol and 4-chlorophenol with hydrochloric acid in 1,4-dioxane, could be completely dehalogenated at room temperature and atmospheric pressure with hydrogene/Raney-Ni. The resulting oligomers 2a, b were esterified with acetic anhydride, and the esters 3a, b were subjected to a oligomer analogous Fries rearrangement to form the linear α-hydro-ω-hydroxypoly(5-acetyl-2-hydroxy-1,3-phenylenemethylene)s 4a and 4b. The characterization of the products was mainly done by spectroscopic methods.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1979-08-01 | Die Makromolekulare Chemie |