Journal
CHINESE JOURNAL OF CHEMISTRY
Volume 40, Issue 5, Pages 571-576Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cjoc.202100658
Keywords
2-Deoxy-C-glycoside; Iridium; C-H activation; Glycosylation; Glycals
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Funding
- National Natural Science Foundation of China [NSFC-21725204, NSFC-22071119]
- 111 project of MOE China [B06005]
- [NCC2020FH02]
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A new protocol for the synthesis of 2-deoxy-C-aryl-glycosides and 2-deoxy-C-alkyl-glycosides via iridium-catalyzed directed C-H glycosylation with glycals is reported. The benzoxazole directing group can be cleanly removed by the treatment of KOH or LiAlH4, offering a versatile method for the synthesis of these glycosides.
Comprehensive Summary A new protocol for the synthesis of 2-deoxy-C-aryl-glycosides and 2-deoxy-C-alkyl-glycosides via iridium-catalyzed directed C-H glycosylation with glycals is reported. The method is amenable for both the C-2 C-H glycosylation of indoles and the methyl C-H glycosylation of secondary methyl amines under the control of an N-linked benzoxazole directing group. The benzoxazole group can be cleanly removed by the treatment of KOH or LiAlH4.
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