METHYL ALPHA-L-RHAMNOPYRANOSIDE synthesis
- Product Name:METHYL ALPHA-L-RHAMNOPYRANOSIDE
- CAS Number:14917-55-6
- Molecular formula:C7H14O5
- Molecular Weight:178.18
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Yield:-
Reaction Conditions:
in methanol
Steps:
Preparative synthesis of the acceptor reaction product (cf.
Figure 2C) Methyl α-L-rhamnopyranoside (ref. 78): To a solution of 5 g (27.4 mmol) of L-Rhamnose monohydrate in 50 mL of MeOH was added 5g of Dowex X8-200 ion exchange resin (H+). The reaction mixture was refluxed for 24h, cooled to room temperature, and filtered. The residue was purified by flash chromatography on silica gel (DCM/MeOH, 88/12) to give 4.4 g of known methyl α-L-rhamnopyranoside as a yellow syrup (90%) as the first eluding product, and 400 mg of methyl β-L-rhamnopyranoside (8%) as the second eluding one.
References:
Institut Pasteur EP2100966, 2009, A1
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14917-55-6
69 suppliers
$45.00/1 g
67-56-1
774 suppliers
$7.29/5ml-f
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14917-55-6
69 suppliers
$45.00/1 g