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124994-75-8

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124994-75-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124994-75-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,9,9 and 4 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 124994-75:
(8*1)+(7*2)+(6*4)+(5*9)+(4*9)+(3*4)+(2*7)+(1*5)=158
158 % 10 = 8
So 124994-75-8 is a valid CAS Registry Number.

124994-75-8Downstream Products

124994-75-8Relevant articles and documents

Origin of the relative stereoselectivity of the β-lactam formation in the Staudinger reaction

Jiao, Lei,Liang, Yong,Xu, Jiaxi

, p. 6060 - 6069 (2006)

The relative (cis, trans) stereoselectivity of the β-lactam formation is one of the critical issues in the Staudinger reaction. Although many attempts have been made to explain and to predict the stereochemical outcomes, the origin of the stereoselectivit

Catalyst-free, high-yield, and stereospecific synthesis of 3-phenylthio β-lactam derivatives

Jiao, Lei,Liang, Yong,Zhang, Qianfeng,Zhang, Shiwei,Xu, Jiaxi

, p. 659 - 665 (2007/10/03)

α-Diazocarbonyl compounds are good precursors of ketenes in the Staudinger reaction. On the basis of the reactions of S-phenyl diazothioacetate with imines under the catalysis of Rh2(OAc)4 a method for the synthesis of 3-phenylthio β

Synthesis of β-Lactams from Novel Stannous Enolates and Imines

Sugano, Yuichi,Naruto, Shunji

, p. 1331 - 1334 (2007/10/02)

From the oxygen esters containing sulfur α-substituent, corresponding stannous enolates were prepared by the use of stannous trifluoromethanesulfonate.The enolates reacted with various imines to provide β-lactams.

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