Novel ring transformation reactions of xanthine derivatives
β Scribed by Mikio Hori; Tadashi Kataoka; Hiroshi Shimizu; Eiji Imai; Yukiharu Matsumoto; Iwao Miura
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- French
- Weight
- 235 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
Dimethyl 1-methoxycarbonyl-1,2-dihydroquinoline-2-phosphonates 1a-f obtained from corresponding quinoline derivatives 2 in one step were ozonized in CHCl 3 and CH 3 COOH. Treatment of the resulting mixture with NaHCO 3 produced the 2-formyl-1-methoxycarbonylindole derivatives 5a-g in high yields. Th
The mercury salt-mediated carbocyclic ring-transformation reaction of the 3-azido (4), 3-benzamido (S), and 3-trifluoroacetamido (11) derivatives of methyl 4-0-benzoyl-2,3,6-trideoxy-P-D-erythro-hex-5-enopyranoside, methyl 3-azido-4-0benzoyl-2,3,6-trideoxy-cu-r>-threo-hex-5-enopyranoside ( 16), and