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2-(5-Benzoyloxy-4-oxo-4H-pyran-2-ylmethyl)-2-(2-methyl-allyl)-malonic acid bis-((1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl) ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

200335-52-0

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200335-52-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 200335-52-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,3,3 and 5 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 200335-52:
(8*2)+(7*0)+(6*0)+(5*3)+(4*3)+(3*5)+(2*5)+(1*2)=70
70 % 10 = 0
So 200335-52-0 is a valid CAS Registry Number.

200335-52-0Downstream Products

200335-52-0Relevant academic research and scientific papers

Asymmetric induction in intramolecular [5 + 2] cycloaddition of 2-(4-alkenyl)-5-benzoyloxy(or 5-silyloxy)-4-pyrones involving migration of the pyrone O-5 group to O-4

Ohmori, Naoki,Yoshimura, Miki,Ohkata, Katsuo

, p. 2097 - 2100 (1997)

Heating of the title compounds (1a,b) at 130°C in o-dichlorobenzene afforded [5+2] annulation products (2a,b) in 70% yield; 27-33% d.e. via 3-oxidopyrylium ylide. Reaction of the title compounds (1b,c) in the presence of ZnCl2 at 40°C furnished

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