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219843-48-8

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219843-48-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219843-48-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,8,4 and 3 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 219843-48:
(8*2)+(7*1)+(6*9)+(5*8)+(4*4)+(3*3)+(2*4)+(1*8)=158
158 % 10 = 8
So 219843-48-8 is a valid CAS Registry Number.

219843-48-8Downstream Products

219843-48-8Relevant articles and documents

Ruthenium-Catalyzed Carbonylative Coupling of Anilines with Organoboranes by the Cleavage of Neutral Aryl C-N Bond

Xu, Jian-Xing,Zhao, Fengqian,Yuan, Yang,Wu, Xiao-Feng

supporting information, p. 2756 - 2760 (2020/03/30)

Herein, we report the first ruthenium-catalyzed Suzuki-type carbonylative reaction of electronically neutral anilines via C(aryl)-N bond cleavage. Without any ligand and base, diaryl ketones can be obtained in moderate to high yields by using Ru3/su

Ortho-allylation of 1-arylpyrazoles with allyl phenyl ether via iron-catalyzed C-H bond activation under mild conditions

Asako, Sobi,Norinder, Jakob,Ilies, Laurean,Yoshikai, Naohiko,Nakamura, Eiichi

supporting information, p. 1481 - 1485 (2014/06/09)

An iron salt and a bipyridine-type ligand catalyze the ortho-allylation of 1-arylpyrazoles and congeners with allyl phenyl ether under mild conditions (0 °C). The ligand, an organozinc base, and the nature of the allylating reagent are crucial for the success of this reaction. Under these conditions, a competitive phenylation reaction is largely retarded, and cross-coupling of the organozinc with the allyl electrophile is minimized. The reaction may proceed via iron-catalyzed ortho C-H activation to form a metallic intermediate, which then reacts with the allyl ether in a γ selective fashion.

RuCi3 xH2O-catalyzed direct arylation of arenes with aryl chlorides in the presence of triphenylphosphine

Luo, Ning,Yu, Zhengkun

supporting information; experimental part, p. 787 - 791 (2010/05/19)

A study was conducted to demonstrate the RuCl3·xH 2O catalytic system for direct arylation of arenes with aryl chlorides. The phenylation of benzo[h]quinoline with chlorobenzene was investigated under preliminary studies. The reaction of benzo[h]quinoline and chlorobenzene N-methyl-2-pyrrolidone (NMP) formed Ph as the only product in 86-93% yields at 120-130 8C in the presence of K2CO3 using 5 mol% RuCl3·xH2O and 10 mol% PPh3. It was observed that the presence of an excess of ligand did not affect formation of Ph, while sub-stoichiometric ligand amounts led to a reduced conversion for benzo[h]quinoline. The arylation and benzylation of benzo[h]quinoline with various aryl chlorides was also investigated under the study.

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