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405139-86-8

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405139-86-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 405139-86-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,5,1,3 and 9 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 405139-86:
(8*4)+(7*0)+(6*5)+(5*1)+(4*3)+(3*9)+(2*8)+(1*6)=128
128 % 10 = 8
So 405139-86-8 is a valid CAS Registry Number.

405139-86-8Downstream Products

405139-86-8Relevant articles and documents

Enantioselective catalysis. Part 142: Carbohydrate-derived oxime ethers from functionalised aldehydes and O-β-D-glucopyranosylhydroxylamine - New C=N ligands stable towards hydrolysis

Brunner, Henri,Schoenherr, Maximilian,Zabel, Manfred

, p. 2671 - 2675 (2001)

A new way of linking carbohydrates to phosphorus- or nitrogen-containing aldehydes via oxime ethers is described resulting in novel C=N ligands which are stable towards hydrolysis. Reaction of O-β-D-glucopyranosylhydroxylamine 2 with 2-diphenylphosphanylbenzaldehyde 3 or pyridine-2-carbaldehyde 4 afforded the oxime ethers O-(β-D-glucopyranosyl)-2-diphenylphosphanylbenzaldoxime 5 and O-(β-D-glucopyranosyl)pyridine-2-carbaldoxime 6. After peracetylation of the hydroxyl groups in 5 and 6, the protected sugar derivatives O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-2- diphenylphosphanylbenzaldoxime 7 and O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)pyridine-2-carbaldoxime 8 were obtained. The molecular structure of 7 was established by X-ray diffraction studies.

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