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43221-63-2

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43221-63-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 43221-63-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,3,2,2 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 43221-63:
(7*4)+(6*3)+(5*2)+(4*2)+(3*1)+(2*6)+(1*3)=82
82 % 10 = 2
So 43221-63-2 is a valid CAS Registry Number.

43221-63-2Relevant articles and documents

Polynuclear copper(ii) pyrazolate complexes: Temperature-dependent protonolysis reactions, crystal structures and high catalytic activity toward the condensation of nitriles with 2-aminoalcohol

Wang, Ling,Guo, Bin,Li, Hong-Xi,Li, Qi,Li, Hai-Yan,Lang, Jian-Ping

, p. 15570 - 15580 (2013)

Reaction of Cu(OAc)2·H2O and 1H-pyrazole-3,5-dicarboxylic acid dimethyl ester (Hdcmpz) in MeOH at room temperature afforded one tetranuclear Cu(ii)/pyrazolate complex [{Cu 2(μ-OAc)2}2(μ-dcmpz)2/

Oxazolinyl-Assisted Ru(II)-Catalyzed C-H Allylation with Allyl Alcohols and Synthesis of 4-Methyleneisochroman-1-ones

Singh, Diksha,Kumar, Gangam Srikanth,Kapur, Manmohan

, p. 12881 - 12892 (2019/09/30)

We report herein a ruthenium-catalyzed, oxazoline-directed strategy for C-H allylation of aryl oxazolines using allylic alcohols as the coupling partner. The present transformation unravels the unusual reactivity of allylic alcohols in the synthesis of 4-

Highly efficient synthesis of β-nitrate ester carboxamides through the ring-opening of 2-oxazolines

Qiao, Kai,Yuan, Xin,Wan, Li,Zheng, Ming-Wei,Zhang, Dong,Fan, Bing-Bing,Di, Zhe-Chen,Fang, Zheng,Guo, Kai

supporting information, p. 5789 - 5793 (2017/12/26)

A novel method for the synthesis of β-nitrate ester carboxamides using non-corrosive tert-butyl nitrite (TBN) as the nitro source and easily available oxygen as the oxidant has been developed. Variously substituted 2-oxazolines were efficiently ring-opened to deliver the corresponding products in excellent yields. Notably, this reaction provides fast access to pharmaceuticals such as nicorandil.

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