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5-Bromo-6-phenyltetrahydro-2H-pyran-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

54966-45-9

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54966-45-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54966-45-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,9,6 and 6 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 54966-45:
(7*5)+(6*4)+(5*9)+(4*6)+(3*6)+(2*4)+(1*5)=159
159 % 10 = 9
So 54966-45-9 is a valid CAS Registry Number.

54966-45-9Downstream Products

54966-45-9Relevant academic research and scientific papers

Hexafluoroisopropanol-Promoted Haloamidation and Halolactonization of Unactivated Alkenes

Qi, Chenxiao,Force, Guillaume,Gandon, Vincent,Leb?uf, David

supporting information, p. 946 - 953 (2020/12/01)

Pyrrolidine and piperidine derivatives bearing halide functional groups are prevalent building blocks in drug discovery as halides can serve as an anchor for post-modifications. In principle, one of the simplest ways to build these frameworks is the haloa

Solvent and catalyst-free bromofunctionalization of olefins using a mechanochemical approach

Wong, Jonathan,Yeung, Ying-Yeung

, p. 13564 - 13570 (2021/04/22)

Bromofunctionalizations of olefins are an important class of chemical transformations.N-Bromoimide reagents are commonly used in these reactions but catalysts and chlorinated solvents are often employed to achieve a reasonable reaction rate. In this repor

Organoselenium Accelerated Bromolactonization Reaction

Tungen, J?rn E.,Kristianslund, Renate,Vik, Anders,Hansen, Trond V.

, p. 11373 - 11381 (2019/10/02)

A highly efficient and regioselective bromolactonization protocol is reported. The quantitative formation of synthetically versatile bromolactones occurs in the presence of only 0.1 mol % of an organoselenium compound, coined DECAD herein, within 90 min.

trans-Cyclooctenes as Halolactonization Catalysts

Einaru, Shunsuke,Shitamichi, Kenta,Nagano, Tagui,Matsumoto, Akira,Asano, Keisuke,Matsubara, Seijiro

supporting information, p. 13863 - 13867 (2018/09/27)

The strained olefins in trans-cyclooctenes serve as efficient catalysts for halolactonizations, including bromolactonizations and iodolactonizations. The trans-cyclooctene framework is essential for excellent catalytic performance, and the substituents also play important roles in determining efficiency. These results are the first demonstration of catalysis by a trans-cyclooctene.

Studies toward Lewis basic thiocarbamate and thiourea mediated bromolactonization: The effect of a trace amount of water on the reactivity and enantioselectivity

Tan, Chong Kiat,Chen, Feng,Yeung, Ying-Yeung

experimental part, p. 4892 - 4895 (2011/10/05)

The effects of trace amounts of water on thiocarbamate- and thiourea-catalyzed bromolactonization reactions are studied. It was found that the thiourea- and the N-Me thiocarbamate-catalyzed bromolactonization reactions were sensitive to trace amounts of m

Aminothiocarbamate-catalyzed asymmetric bromolactonization of 1,2-disubstituted olefinic acids

Tan, Chong Kiat,Zhou, Ling,Yeung, Ying-Yeung

scheme or table, p. 2738 - 2741 (2011/06/26)

An efficient and enantioselective bromolactonization of 1,2-disubstituted olefinic acids using an amino-thiocarbamate catalyst has been developed, resulting in the formation of δ-lactones containing two chiral centers with up to 99% yield, 95% ee.

Lewis base catalysis of bromo- and iodolactonization, and cycloetherification

Denmark, Scott E.,Burk, Matthew T.

experimental part, p. 20655 - 20660 (2011/10/12)

Lewis base catalyzed bromo- and iodolactonization reactions have been developed and the effects of catalyst structure on rate and cyclization selectivity have been systematically explored. The effects of substrate structure on halolactonization reactions

LEAD(IV) ACETATE-METAL HALIDE REAGENTS III. A NEW METHOD FOR THE SYNTHESIS OF TETRAHYDROFURAN, TETRAHYDROPYRAN AND LACTONE DERIVATIVES

Motohashi, Shigeyasu,Satomi, Masakichi,Fujimoto, Yasuo,Tatsuno, Takashi

, p. 2035 - 2039 (2007/10/02)

A new method for the synthesis of tetrahydrofuran, tetrahydropyran and lactone derivatives from γδ-, δε-unsaturated alcohols and βγ-, γδ-carboxylic acids is described.

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