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3,6-dimethyl-1H-isochromene-1-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

71568-81-5

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71568-81-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71568-81-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,5,6 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 71568-81:
(7*7)+(6*1)+(5*5)+(4*6)+(3*8)+(2*8)+(1*1)=145
145 % 10 = 5
So 71568-81-5 is a valid CAS Registry Number.

71568-81-5Downstream Products

71568-81-5Relevant academic research and scientific papers

Assembly of 3-substituted isocoumarins via a CuI-catalyzed domino coupling/addition/deacylation process

Cai, Shangjun,Wang, Fei,Xi, Chanjuan

, p. 2331 - 2336 (2012)

An efficient strategy for the synthesis of a variety of 3-substituted isocoumarins has been developed. The reaction proceeded from o-halobenzoic acids and 1,3-diketones via a copper(I)-catalyzed domino reaction in DMF under the action of K3PO4 at 90-120 °C without a ligand to afford the corresponding 3-substituted isocoumarin derivatives in good to excellent yields. o-Halobenzoic acids could be o-iodobenzoic acid, o-bromobenzoic acid, and o-chlorobenzoic acid derivatives. 1,3-Diketones could be alkyl- and aryl-substituted 1,3-diketones.

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