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Reaktion von 2,3,4‐Tri‐ O ‐acetyl‐α‐ L ‐rhamnopyranosylbromid mit ethanolischer Trimethylamin‐Lösung
Author(s) -
Bognár Rező,
Farkas István
Publication year - 1990
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.199019900194
Subject(s) - chemistry , trimethylamine , bromide , medicinal chemistry , stereochemistry , organic chemistry
Reaction of 2,3,4‐Tri‐ O ‐acetyl‐α‐ L ‐rhamnopyranosyl Bromide with an Ethanolic Solution of Trimethylamine Reaction of 2,3,4‐tri‐ O ‐acetyl‐α‐ L ‐rhamnopyranosyl bromide ( 1 ) with an ethanolic solution of trimethylamine yielded 2,3‐di‐ O ‐acetyl‐1,2‐ O ‐(1‐ethoxyethylidene)‐β‐ L ‐rhamnopyranose (2) instead of 1,4‐Anhydro‐2,3‐di‐ O ‐acetyl‐α‐ L ‐rhamnopyranose ( 3 ) as was earlier described in the literature. The structure of compound 2 was established by analysis and spectroscopical data.