82300-67-2Relevant articles and documents
Cp2ZrCl2-AgClO4: Efficient Promoter for the Friedel-Crafts Approach to C-Aryl Glycosides
Matsumoto, Takashi,Katsuki, Miyoko,Suzuki, Keisuke
, p. 833 - 836 (1989)
Combination of Cp2ZrCl2-AgClO4 is highly effective for promoting the Friedel-Crafts coupling of glycosyl fluoride and aromatic compounds.Regiochemical aspects of the reactions of some naphthalene derivatives are described.
Total synthesis of mangiferin, homomangiferin, and neomangiferin
Wei, Xiong,Liang, Danlin,Wang, Qing,Meng, Xiangbao,Li, Zhongjun
, p. 8821 - 8831 (2016/10/03)
Total synthesis of mangiferin, homomangiferin, and neomangiferin, three C-glycosyl xanthone natural products with a wide spectrum of pharmacological effects, has been achieved starting from 2,3,4,6-tetra-O-benzyl-α/β-d-glucopyranose. The key steps involve a stereoselective Lewis acid promoted C-glycosylation of protected phloroglucinol with tetrabenzylglucopyranosyl acetate and a highly regioselective base-induced cyclization for the construction of the core xanthone skeleton.
Synthesis of C-glycosides from S-glycosyl phosphorothioates
Kudelska
, p. 243 - 247 (2007/10/03)
Treatment of O-benzyl protected S-glucosyl phosphorothioates with 1,3,5-trimethoxybenzene in the presence of iodine or boron trifluoride etherate led to appropriate aryl C-β-D-glucosides. The reaction of O-benzyl and O-acetyl-protected phosphorothioates o
Application of the versatile character of the tellurium atom for the synthesis of C-nucleoside analogues via sugar tellurides
He, Wei,Togo, Hideo,Waki, Yuji,Yokoyama, Masataka
, p. 2425 - 2433 (2007/10/03)
Making use of the versatile character of the tellurium atom such as its radicophilicity, nucleophilicity and electrophilicity, D-ribofuranosyl, 2-deoxy-D-ribofuranosyl and D-glucosyl p-methoxyphenyl tellurides have been prepared. Under suitable conditions, the corresponding anomeric radical, anomeric cation and anomeric anion, respectively, are formed from the sugar tellurides. By the following coupling reactions of the anomeric radical and anomeric cation to electron-poor and electron-rich aromatics, respectively, the corresponding C-nucleoside analogues have been synthesized in moderate yields. The anomeric anion has also been trapped by an electrophile such as benzaldehyde.