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90923-70-9

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90923-70-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90923-70-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,2 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 90923-70:
(7*9)+(6*0)+(5*9)+(4*2)+(3*3)+(2*7)+(1*0)=139
139 % 10 = 9
So 90923-70-9 is a valid CAS Registry Number.

90923-70-9Relevant articles and documents

Nickel-Catalyzed C(sp3)-H Functionalization of Benzyl Nitriles: Direct Michael Addition to Terminal Vinyl Ketones

Zhang, Ninghui,Zhang, Chunli,Hu, Xiaoping,Xie, Xin,Liu, Yuanhong

supporting information, p. 6004 - 6009 (2021/07/31)

An efficient nickel(0)-catalyzed addition of benzyl nitriles to terminal vinyl ketones via C(sp3)-H functionalization has been developed. The reaction provides a novel and efficient protocol for the synthesis of α-functionalized benzyl nitriles with a wide range of structural diversity under mild reaction conditions while obviating the use of a strong base. The work might be potentially useful toward the development of an enantioselective variant using chiral nitrogen ligands.

Synthesis of 2-(3-Arylallylidene)-3-oxindoles via Dirhodium(II)-Catalyzed Reaction of 3-Diazoindolin-2-imines with 1-Aryl-Substituted Allylic Alcohols and Computational Insights

Gao, Ke,Kou, Luyao,Fu, Rui,Bao, Xiaoguang

supporting information, p. 1292 - 1297 (2020/02/11)

A straightforward approach for the synthesis of 2-(3-arylallylidene)-3-oxindoles has been achieved by the dirhodium(II)-catalyzed reaction of 3-diazoindolin-2-imines with 1-aryl-substituted allylic alcohols. This protocol employs easily accessible feedsto

Manganese-Catalyzed Ring-Opening Coupling Reactions of Cyclopropanols with Enones

Zhang, Yong-Hui,Zhang, Wen-Wei,Zhang, Ze-Yu,Zhao, Kai,Loh, Teck-Peng

supporting information, p. 5101 - 5105 (2019/07/03)

A manganese-catalyzed ring-opening coupling reaction of cyclopropanols with enones for the facile and efficient preparation of 1,6-diketones is described. A wide array of synthetically important 1,6-diketones bearing manifold functional groups are obtained with up to 93% yield. These reactions feature broad substrate scopes, environmentally benign conditions, inexpensive catalyst, and operational simplicity.

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