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Acetale von 1,2,3,4‐Tetraoxobutan: Herstellung und Struktur von rac ‐ und meso ‐2,3,3,4,4,5‐Hexamethoxy‐tetrahydrofuran
Author(s) -
Iten Peter Xaver,
Weber Hans Peter,
Eugster Conrad Hans
Publication year - 1977
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19770600212
Subject(s) - chemistry , tetrahydrofuran , triethylamine , methanol , organic chemistry , solvent
Acetals of 1,2,3,4‐tetraoxobutane: preparation and structure determination of rac ‐ and meso ‐2,3,3,4,4,5‐hexamethoxy‐tetrahydrofuran Oxidation of 3,4‐dimethoxyfuran with 2 equiv. of bromine at −75° in the presence of triethylamine and methanol leads to a mixture of rac ‐ and meso ‐2,3,3,4,4,5‐hexamethoxy‐tetrahydrofuran (cf. Scheme 1 , 4 and 5 ). The structure of the crystalline rac ‐compound has been determined by X‐ray analysis.