93. Studies in the amino-sugars. Part II. The action of dilute alkali solution on N-acylglucosamines

Determination of Carbohydrates in Glycolipides and Gangliosides by Gas Chromatography.

“…A procedure was, therefore, developed for acetylation of amines after methanolysis. The conditions of White (19) for A'-acetylation of galactosamine in methanol and acetic anhydride, in the presence of silver acetate, give good yields of A'-acetylgalactosamine from galactosamine hydrochloride. It is necessary to assure complete removal of the acetic anhydride from the tube, following A'-acetylation, to avoid interference with the subsequent conversion of OH groups to trimethylsilyl ethers.…”

A 1H‐NMR Spectroscopic Investigation of the Conformation of the Acetamido Group in Some Derivatives of N‐Acetyl‐D‐allosamine and ‐D‐glucosamine

“…See [39]. The following compounds were prepared according to literature procedures: a -D-andB -0-9 by thermolysis of 17 in the presence of MeOH [I], sr-~-14 [32], 8-0-14 [33], and 3.-D-and 8-0-15 [34] 1351 by methylation o f a -D-21 [72] [73],8-~-21 [72] [74], and a -D-andp -~-2 3 , resp., with Me,SO,/NaOH in CCI,/H,O [75], a -D-andB a -1 1 [30] [76] [77] by benzylation of a -D-andp-D-23 with KOH and benzyl chloride (BnCI) in dioxane [78]. Anal.…”

Attempted Preparation of Polyvinylamine (1)

“…Calc'd for (C6HioN02)n: N, 12.06. Found: N, 13.34. In another experiment polyvinylisocyanate (61 g.) was subjected to long refluxing with alcoholic hydrogen chloride yielding a soluble product similar to that above and an alcoholinsoluble, water-soluble second product, yield 22 Polyvinylisocyanate (10 g.) made in dimethylformamide was partially dissolved in alcoholic dimethylformamide (10 cc. of abs.…”