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Bis(1,2;5,6-di-O-isopropylidene-α-D-glucosyl)carbonate is a complex organic compound with the chemical formula C21H34O9. It is a derivative of α-D-glucose, a monosaccharide, where two glucose units are connected through a carbonate group, and each glucose molecule is protected with isopropylidene groups at the 1,2 and 5,6 positions. bis(1,2;5,6-di-O-isopropylidene-α-D-glucosyl)carbonate is often used in organic synthesis, particularly in the preparation of complex carbohydrates and as a protecting group in carbohydrate chemistry. The isopropylidene groups help to prevent unwanted side reactions by blocking the hydroxyl groups, which is crucial for the selective modification of specific functional groups in the molecule.

4239-74-1

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4239-74-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4239-74-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,3 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4239-74:
(6*4)+(5*2)+(4*3)+(3*9)+(2*7)+(1*4)=91
91 % 10 = 1
So 4239-74-1 is a valid CAS Registry Number.

4239-74-1Downstream Products

4239-74-1Relevant academic research and scientific papers

The Reaction of N-Dichloromethylene-N,N-dimethylammonium chloride (Viehe's Salt) with 1,2:5,6-Di-O-isopropylidene-α-D-glucose

Copeland, Christopher,Stick, Robert V.

, p. 2269 - 2275 (2007/10/02)

The treatment of 1,2:5,6-di-O-isopropylidene-α-D-glucose with N-dichloromethylene-N,N-dimethylammonium chloride (Viehe's salt) (2:1 or 1:1) gives two iminium salts.These are readily hydrolysed to a carbonate and a carbamate.Treatment with sodium hydrogen

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