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6-(1'-benzyloxypentyl)-5,6-dihydropyran-2,4(3H)-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

136850-73-2

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136850-73-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136850-73-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,8,5 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 136850-73:
(8*1)+(7*3)+(6*6)+(5*8)+(4*5)+(3*0)+(2*7)+(1*3)=142
142 % 10 = 2
So 136850-73-2 is a valid CAS Registry Number.

136850-73-2Relevant academic research and scientific papers

A stereoselective synthesis of (±)-pestalotin

Honda,Okuyama,Hayakawa,Kondoh,Tsubuki

, p. 1866 - 1868 (1991)

(±)-Pestalotin was synthesized by employing a stereoselective reduction of a 5-alkyltetronate derivative and a two-carbon elongation reaction of the aldehyde with ethyl diazoacetate in the presence of stannous chloride as key steps.

High Diastereoselection in the Aldol Reaction of the Bistrimethylsilyl Enol Ether of Methyl Acetoacetate with 2-Benzyloxyhexanal: Synthesis of (-)-Pestalotin

Hagiwara, Hisahiro,Kimura, Katsuhiko,Uda, Hisashi

, p. 693 - 700 (2007/10/02)

Aldol condensation of the bistrimethylsilyl enol ether of methyl acetoacetate, compound 2, with 2-benzyloxyhexanal 3c affords highly selectively (99:1) the syn-aldol adduct 4c in the presence of titanium tetrachloride.The stereocontrolled synthesis of (-)-pestalotin 7 has been achieved.

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