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.
