JCGGDB TOP Glycan Syntheses

Reaction

JCGG ID
JCGG-RAC0000659
Submitter
The Noguchi Institute
Reaction ID
R-0000-000659
Regist Date
2012/06/21 16:17:20
REACTANT
MOLECULE ID
JCGG-COM0000739 (Reaction Tree)
Reactant Type
thioglycoside
Mol
0.19 mmol
MOLECULE ID
JCGG-COM0000740 (Reaction Tree)
Reactant Type
alcohol
Mol
0.19 mmol
MOLECULE ID
JCGG-COM0000741
Reactant Type
MeOTf
Mol
0.97 mmol
MOLECULE ID
JCGG-COM0000047
Reactant Type
Et3N
Volume
0.4 mL
PRODUCT
MOLECULE ID
JCGG-COM0000742 (Reaction Tree)
Yield
62%/89% (based on compound 3/4)
REACTION DETAIL
Reaction Time
15 minutes, 12 hours
Reaction Temp
room temp, 0 to 5 degree C
Solvent
CH2Cl2/Et2O = 1.5mL/3mL, CH2Cl2/Et2O = 1.5mL/3mL
Comment
1) 3+4, MS 4A, 2) +MeOTf, Et3N
Compound 3 and 4 were weighed in an oven-dried flask and were then azeotropically dried using anhydrous benzene and thereafter placed under vacuum overnight before the reaction.
MS 4A was included in the solvent. (first phase)
Et3N was added at the end of the reaction.
COMMENT
There are two phases in this reaction.
REFERENCE
Reference Id
REF-0000-000030
Issn
Print
PubMed ID
10813908
Journal Name
The Journal of organic chemistry. (2000) 65 (1): 144-51.
Article Title
A total synthesis of the methyl glycoside of ganglioside GM(1).
Author
S K, Bhattacharya; S J, Danishefsky
Affiliation
Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027, USA.
Reference Id
REF-0000-000031
Source
J. Org. Chem., 2000, 65, 144-151
Doi
10.1021/jo9912496

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