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4-methoxybenzoic acid (2R,3R,4R,5S,6S)-4,5-diacetoxy-2-{2-[(2S',6R')-3'-(4-methoxybenzoyloxy)-6'-methoxy-3',6'-dihydro-2H-pyran-2'-yl]ethyl}-6-methoxytetrahydropyran-3-yl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

402491-18-3

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402491-18-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 402491-18-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,4,9 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 402491-18:
(8*4)+(7*0)+(6*2)+(5*4)+(4*9)+(3*1)+(2*1)+(1*8)=113
113 % 10 = 3
So 402491-18-3 is a valid CAS Registry Number.

402491-18-3Upstream product

402491-18-3Downstream Products

402491-18-3Relevant academic research and scientific papers

Directed and undirected asymmetric dihydroxylation reactions: Application in the synthesis of a C-linked analogue of allolactose

Hodgson,Mahid,Nelson

, p. 2076 - 2077 (2001)

The complex OsO4·(S,S)-1,2-diphenyl-N,N′-bis(2,4,6- trimethylbenzyl) ethane-1,2-diamine is an effective reagent for the desymmetrisation of meso-1,2-bis(3,6-dihydro-2H-pyran-2-yl)ethanes by asymmetric dihydroxylation; this process, whose sense of diastereoselectivity depends on substitution and stereochemistry, has been exploited in the synthesis of a C-linked analogue of allolactose.

Desymmetrisation of meso difuryl alcohols, diols and their derivatives: Complementary directed and undirected asymmetric dihydroxylation reactions

Hodgson, Robert,Majid, Tahir,Nelson, Adam

, p. 1631 - 1643 (2007/10/03)

Asymmetric reactions (for example, asymmetric epoxidation and asymmetric dihydroxylation) were examined for the desymmetrisation of the meso substrates 1,1-difuran-2-ylmethanol,N-(1,1-difuran-2-ylmethyl)-4- methylbenzenesulfonamide, (R,S)-1,4-difuran-2-yl

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