Communications to the Editor Vol. 69 stead behave anomalously.2 Thus a quantity of acetate in 10 ml. of a solution of hydrogen bromide in acetic acid and acetyl bromide, calculated to produce 7.576 X 10~4 *mole of 1 -bromotetraacetyl glucose, assuming the disaccharide is quantitatively converted to this derivative, gave the foliosing end rotations: /3-maltose octaacetate, + 17.2; gentiobiose octaacetate, +12.2; and octaacetates I and II, + 12.1 and +11.2°, respectively.
Recent interest in the chemistry of Mannich bases derivable from indole (1,2) and its derivatives (3, 4) prompts us to report on work done in this field some years ago. At that time it was deemed desirable to add the indole nucleus to the list of basically substituted heterocyclic systems under investigation as
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