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E-(Et)(C6H5)CC(C6H5)(SiMe2C5H4N) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

624731-31-3

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624731-31-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 624731-31-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,2,4,7,3 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 624731-31:
(8*6)+(7*2)+(6*4)+(5*7)+(4*3)+(3*1)+(2*3)+(1*1)=143
143 % 10 = 3
So 624731-31-3 is a valid CAS Registry Number.

624731-31-3Upstream product

624731-31-3Relevant academic research and scientific papers

Catalytic carbometalation/cross-coupling sequence across alkynyl(2-pyridyl)silanes leading to a diversity-oriented synthesis of tamoxifen-type tetrasubstituted olefins

Kamei, Toshiyuki,Itami, Kenichiro,Yoshida, Jun-Ichi

, p. 1824 - 1835 (2007/10/03)

A general synthetic scheme for tamoxifen-type tetrasubstituted olefins based on the novel Cu-catalyzed carbomagnesation across alkynyl(2-pyridyl)silane has been developed. A wide array of electronically and structurally diverse tetrasubstituted olefins can be prepared in a regiocontrolled, stereo-controlled, and diversity-oriented manner. Noteworthy features are that (i) the three aryl groups, which are believed to be important (essential) for anti-estrogenic activity, can be varied at will because they all stem from readily available aryl iodides, and (ii) any stereo- and regioisomers can, in principle, be prepared by simply changing the order use of the aryl iodides in the sequence.

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