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1307296-48-5

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1307296-48-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1307296-48-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,7,2,9 and 6 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1307296-48:
(9*1)+(8*3)+(7*0)+(6*7)+(5*2)+(4*9)+(3*6)+(2*4)+(1*8)=155
155 % 10 = 5
So 1307296-48-5 is a valid CAS Registry Number.

1307296-48-5Relevant articles and documents

Practical and highly stereoselective method for the preparation of several chiral arylsulfinamides and arylsulfinates based on the spontaneous crystallization of diastereomerically pure N-benzyl-N-(1-phenylethyl)- arylsulfinamides

Zhu, Rui-Heng,Shi, Xiao-Xin

, p. 387 - 393 (2011/06/11)

A novel and simple process for the preparation of enantiomerically pure (SS)-benzenesulfinamide (SS)-3a, (SS)-p- toluenesulfinamide (SS)-3b, (SS)-p-chloro- benzenesulfinamide (SS)-3c and (SS)-p- fluorobenzenesulfinamide (SS)-3d has been developed. The treatment of arylsulfinyl chlorides with (R)-N-benzyl-1-phenylethanamine in the presence of excess triethylamine gave diastereomeric mixtures of N-benzyl-N-(1-phenylethyl)- arylsulfinamides 1, which underwent spontaneous crystallization to furnish diastereomerically pure (R,SS)-N-benzyl-N-(1-phenylethyl)- arylsulfinamides (R,SS)-1a-1d in 28%, 29%, 27% and 31% yields, respectively. The diastereomerically pure compounds (R,SS)-1 were then converted into four enantiopure (RS)-methyl arylsulfinates (RS)-2, and finally into four enantiopure (SS)- arylsulfinamides (SS)-3 in good yields.

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