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1438558-71-4

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1438558-71-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1438558-71-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,8,5,5 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1438558-71:
(9*1)+(8*4)+(7*3)+(6*8)+(5*5)+(4*5)+(3*8)+(2*7)+(1*1)=194
194 % 10 = 4
So 1438558-71-4 is a valid CAS Registry Number.

1438558-71-4Downstream Products

1438558-71-4Relevant articles and documents

Rhodium(III)-Catalyzed Direct Coupling of Quinoline-8-Carbaldehydes with (Het)Arylboronic Acids for the Synthesis of 8-Aryloylquinolines

Lyu, Xue-Li,Huang, Shi-Sheng,Huang, Yuan-Qiong,Li, Yong-Qiang,Song, Hong-Jian,Liu, Yu-Xiu,Wang, Qing-Min

, p. 10271 - 10282 (2020/09/03)

Herein, we describe a method for the synthesis of aryl-(het)aryl ketones by Rh(III)-catalyzed direct coupling between quinoline-8-carbaldehydes and (het)arylboronic acids. The method has a broad substrate scope, a high functional group tolerance, and uses

Direct exchange of a ketone methyl or aryl group to another aryl group through ciC bond activation assisted by rhodium chelation

Wang, Jingjing,Chen, Weiqiang,Zuo, Sujing,Liu, Lu,Zhang, Xinrui,Wang, Jianhui

, p. 12334 - 12338 (2013/02/23)

Swapped: Commercially available quinolinone derivatives (1 or 2, see scheme) were reacted with arylboronic acids in the presence of a RhI complex to give aryl(quinolin-8-yl)methanone products 3 in medium to good yields. A mechanism that involves the in situ oxidation of RhI to RhIII by O2 in the presence of CuI was proposed. Copyright

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