Method for the production of D-chiroinositol
First Claim
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1. A method for the synthesis of mannodialdose from mannuronic acid comprising the steps of:
- a. reacting mannuronic acid with a trisubstituted-boroxin to form a boronate ester; and
b. reducing the boronate ester with dialkylboron to form mannodialdose.
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Abstract
The present invention relates to the synthesis of D-chiroinositol from a dialdose, comprising the steps of condensing the dialdose by an acyloin condensation reaction to form an inosose, protecting the carbon atoms at the 2, 3, 4 and 5 positions, reducing the ketone of the inosose and removing the protecting groups. In addition, a method of preparing mannodialdose from mannuronic acid is disclosed.
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14 Claims
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1. A method for the synthesis of mannodialdose from mannuronic acid comprising the steps of:
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a. reacting mannuronic acid with a trisubstituted-boroxin to form a boronate ester; and b. reducing the boronate ester with dialkylboron to form mannodialdose. - View Dependent Claims (2, 3)
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- 4. A method for the synthesis of an inosose from a dialdose, comprising condensing the dialdose by an acyloin condensation reaction catalyzed by a thiazolium salt.
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10. A method for the synthesis of an inositol from an inosose, comprising the steps of:
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a. protecting the carbon atoms at the 2, 3, 4 and 5 positions of the inosose by forming a first five-membered ring which incorporates carbons 2 and 3, and a second five-membered ring which incorporates carbons 4 and 5; b. reducing the ketone of the inosose to form a diol; and c. removing the protecting groups by subjecting the diol to acid catalyzed hydrolysis. - View Dependent Claims (11, 12, 13, 14)
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Specification