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66336-69-4

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66336-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66336-69-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,3,3 and 6 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 66336-69:
(7*6)+(6*6)+(5*3)+(4*3)+(3*6)+(2*6)+(1*9)=144
144 % 10 = 4
So 66336-69-4 is a valid CAS Registry Number.

66336-69-4Downstream Products

66336-69-4Relevant articles and documents

BF3·OEt2-mediated [1,2]-aryl shift: Synthesis of functionalized α-arylnitriles via the bromination/cyanation/deformylation of substituted deoxybenzoin

Chan, Chieh-Kai,Chang, Meng-Yang

, p. 5207 - 5213 (2017/07/28)

A new sequential, tandem synthesis of functionalized α-arylnitriles via the bromination/cyanation/deformylation of substituted deoxybenzoin has developed. CuBr2-promoted bromination of substituted deoxybenzoins gives 2-bromo-2-arylacetophenne 3. The cyanation of 3 with sodium cyanide (NaCN) generates epoxynitrile. Then, a treatment of epoxynitrile with BF3·OEt2 results in the formation of functionalized α-arylnitriles 4 via a 1,2-aryl shift.

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