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1295585-45-3

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1295585-45-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1295585-45-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,5,5,8 and 5 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1295585-45:
(9*1)+(8*2)+(7*9)+(6*5)+(5*5)+(4*8)+(3*5)+(2*4)+(1*5)=203
203 % 10 = 3
So 1295585-45-3 is a valid CAS Registry Number.

1295585-45-3Downstream Products

1295585-45-3Relevant articles and documents

A novel CAN-SiO2-mediated one-pot oxidation of 1-keto-1,2,3,4-tetrahydrocarbazoles to carbazoloquinones: Efficient syntheses of murrayaquinone A and koeniginequinone A

Chakraborty, Suchandra,Chattopadhyay, Gautam,Saha, Chandan

, p. 331 - 338 (2011/06/19)

One-pot oxidations of substituted 1-keto-1,2,3,4-tetrahydrocarbazoles (1) to carbazole-1,4-quinones (2) are efficiently carried out by CAN-SiO 2-mediated reaction. This generalized protocol was successfully extended to the synthesis of two naturally occurring carbazoloquinones: murrayaquinone A (2b) and koeniginequinone A (2g). A plausible mechanism for this novel reaction involves formation of a 9-hydroxy-2,3,4,9-tetrahydro-1H- carbazole-1-one followed by rearrangement to 1-hydroxycarbazole derivatives, which are further oxidized by cerium (IV) to carbazoloquinones.

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