Observations upon the resistance of the rat to consecutive injections of strychnine

✍ Scribed by E.W. Schwartze

• Book ID: 104124123
• Publisher: Elsevier Science
• Year: 1922
• Tongue: English
• Weight: 92 KB
• Volume: 193
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(22)90595-2

✦ Synopsis

CHLORO-TETRA-ACETVL mannose, hitherto known only in the form of a syrup, has been obtained in crystalline form.

The behavior of the crystalline substance toward methyl alcohol and silver carbonate (reaction of Koenigs and Knorr) is analogous to that of bromo-tri-acetyl rhamnose. This is well accounted for by their structural formulas.

In the case of chloro-tetra-acetyl mannose, this reaction leads to various methyl tetra-acetyl derivatives and in this respect chlorotetra-acetyl mannose differs from the corresponding derivatives of glucose and galactose, which yield only one methyl tetraacetyl derivative.

This difference in behavior may lead to a more detailed knowledge of the arrangement of the constituent parts of their molecules.