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1438388-69-2

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1438388-69-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1438388-69-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,8,3,8 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1438388-69:
(9*1)+(8*4)+(7*3)+(6*8)+(5*3)+(4*8)+(3*8)+(2*6)+(1*9)=202
202 % 10 = 2
So 1438388-69-2 is a valid CAS Registry Number.

1438388-69-2Downstream Products

1438388-69-2Relevant articles and documents

A singlet oxygen approach to oxaspirocycles

Jones, Kevin M.,Hillringhaus, Tim,Klussmann, Martin

, p. 3294 - 3297 (2013)

A method for the preparation of oxygen containing spirocycles using singlet oxygen is reported. A series of phenols were converted into the corresponding peroxy-cyclohexadienone derivatives by irradiation with visible light in the presence of a sensitizer and oxygen. The resulting peroxides could be converted into ether and lactone spirocycles in one or two steps. The synthesis of the oxaspirocycles from the phenols can also be performed in a one-pot fashion, avoiding the isolation of the peroxide intermediates.

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