JCGGDB TOP Glycan Syntheses

Reaction

JCGG ID
JCGG-RAC0002321
Submitter
The Noguchi Institute
Reaction ID
R-0000-002321
Regist Date
2012/06/21 19:02:20
REACTANT
MOLECULE ID
JCGG-COM0003026 (Reaction Tree)
Mol
0.20 mmol
MOLECULE ID
JCGG-COM0003027
Reactant Type
TEMPO (in CH2Cl2)
Mol
0.0025 mmol
MOLECULE ID
JCGG-COM0003028
Reactant Type
KBr (in the solution of saturated NaHCO3 in H2O)
Mol
0.018 mmol
MOLECULE ID
JCGG-COM0000832
Reactant Type
TBAB (in the solution of saturated NaHCO3 in H2O)
Mol
0.001 mmol
MOLECULE ID
JCGG-COM0000549
Reactant Type
NaHCO3 (saturated in H2O)
Volume
0.4 mL
MOLECULE ID
JCGG-COM0003029
Reactant Type
NaOCl (12.5% w/v in the solution of saturated NaHCO3 in H2O)
Volume
0.5 + 0.5 mL
MOLECULE ID
JCGG-COM0003030
Reactant Type
NaCl (saturated in H2O)
Volume
0.4 mL
MOLECULE ID
JCGG-COM0000665
Reactant Type
CH(OMe)3
Mol
0.39 mmol
MOLECULE ID
JCGG-COM0000660
Reactant Type
SOCl2
Mol
0.20 mmol
PRODUCT
MOLECULE ID
JCGG-COM0003031 (Reaction Tree)
Yield
76%
REACTION DETAIL
Reaction Time
10 + 30 + 15 minutes, 30 minutes
Reaction Temp
0 degree C, room temp
Solvent
CH2Cl2/H2O, anhydrous MeOH
Comment
1) +all except CH(OMe)3 and SOCl2, 2) +CH(OMe)3, SOCl2
KBr and TBAB were mixed independently, and then poured into the reaction mixture.
Both NaOCl and NaCl were added dropwise over 10 minutes.
NaOCl was added twice. (first phase; 0 minutes, 40 minutes)
The addition of CH(OMe)3 was performed before the addition of SOCl2. (second phase)
COMMENT
Keywords: 2-acylamino uronic acid, glycosyl phosphonates, oxidation, uronate 2-nitro-glycal, thermodynamic 1,2-trans-di-equatorial phosphonylation
There are multiple phases in this reaction.
REFERENCE
Reference Id
REF-0000-000331
Issn
Electronic
Doi
10.1021/jo2002193
PubMed ID
21495699
Journal Name
The Journal of organic chemistry. (2011) 76 (10): 4099-104.
Article Title
Accessing C-1 phosphonylated 2-acylamino uronic acids via 2-nitro-glycals.
Author
Beenu, Bhatt; Robin J, Thomson; Mark, von Itzstein
Affiliation
Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4222, Australia.
Reference Id
REF-0000-000332
Source
J. Org. Chem. 2011, 76, 4099-4104
Doi
10.1021/jo2002193

©2008-2013 Research Center for Medical Glycoscience, National Institute of Advanced Industrial Science and Technology (AIST)