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1255189-02-6

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1255189-02-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1255189-02-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,5,1,8 and 9 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1255189-02:
(9*1)+(8*2)+(7*5)+(6*5)+(5*1)+(4*8)+(3*9)+(2*0)+(1*2)=156
156 % 10 = 6
So 1255189-02-6 is a valid CAS Registry Number.

1255189-02-6Downstream Products

1255189-02-6Relevant articles and documents

An organocatalytic domino thia-michael/aldol condensation reaction: Highly enantioselective synthesis of functionalized dihydrothiophenes

Tang, Jie,Xu, Dan Qian,Xia, Ai Bao,Wang, Yi Feng,Jiang, Jun Rong,Luo, Shu Ping,Xu, Zhen Yuan

supporting information; experimental part, p. 2121 - 2126 (2010/11/05)

An organocatalytic domino thia-Michael/ aldol condensation reaction of a, β-unsaturated aldehydes with 1, 4-dithiane-2,5-diol catalyzed by chiral diphenylprolinol TMS ether has been developed, which provides a new practical and direct route to chiral dihydrothiophenes with high yields (up to 90%) and excellent enantioselectivities (up to>99% ee). The catalytic mechanism of the domino reaction was further confirmed through the APCI-MS detection of proposed reaction intermediates.

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