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Synthesis and resolution of 2,3-diamino-1-cyclohexanols

โœ Scribed by Kunisuke Izawa; Takashi Ineyama; Kazuaki Fujii; Tetsuo Suami


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
522 KB
Volume
205
Category
Article
ISSN
0008-6215

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โœฆ Synopsis


There are four theoreti~lly possible stereoisomers of 2,3-diamino-l-cyclohexanols, each of which is dissymmetric and therefore racemic. The (1,2/3)-l and the (1,3/2)-stereoisome? are known, and syntheses of the (l/2,3)-( 6) and the (1,2,3/0)stereoisomer ( 13) are now reported.

Starting from known (1 ,3~2)-2-amino-1,3-cyclohexanedio13 (l), (l/2,3)-2,3-dia-* Dedicated to Professor Leslie Hough in the year of his 65th birthday. Aminocyclitols, Part 37.


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Synthesis and reactions of 1,1-diamino-2
โœ Nikolai V. Latypov; Jan Bergman; Abraham Langlet; Ulf Wellmar; Ulf Bemm ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 490 KB

Low temperature nitrations of 2-methylimidazole gave in addition to the known 2-methyl-5(4)-nitroimidazole (1), 2-(dinitromethylene)-5,5-dinitro-4-imidazolidinone (3) and parabanic acid (2). The tetranitro compound 3 was also obtained by nitration of 2-methyl-4,5-dihydro-(lH)-5-imidazolone (8). Ther