28897-11-2Relevant articles and documents
Synthesis of β-hydroxy aryl selenides via transition-metal-free three-component reaction of arylamines, elemental selenium, and epoxides
Wang, Hongwei,Li, Hongchen,Bai, Yalong,Hei, Yanling,Chen, Junwei,Yu, Guoqi,Zhou, Yun-Bing
, p. 3621 - 3629 (2021/06/21)
An efficient protocol for the construction of valuable β-hydroxy aryl selenides from easily available arylamines, elemental selenium, and epoxides through a transition-metal-free radical process is described. A wide variety of β-hydroxy aryl selenides were obtained in good to excellent yields with excellent stereo- and regioselectivity. In this reaction, two C-Se bonds can be built along with the cleavage of a C-N and C-O bond, demonstrating the high step economy and efficiency of this approach.
Beta-hydroxyl selenide compound and preparation method
-
Paragraph 0066; 0067; 0068; 0069, (2018/12/13)
The invention relates to a beta-hydroxyl selenide compound and a preparation method. The preparation method comprises the following steps of: performing cascade reaction in an organic solvent by adopting an epoxy compound and phenylboronic acid as reactio
Synthesis of 2,2-diarylvinyl phenyl selenides by dehydration of 2-hydroxyalkyl phenyl selenides
Stuhr-Hansen, Nicolai
, (2018/10/20)
A novel route to 2,2-diarylvinyl phenyl selenides is reported by dehydration of the corresponding 2,2-diaryl-2-hydroxyethyl phenyl selenides, prepared by oxyphenylselenenylations of the corresponding 1,1-diarylethylenes, upon treatment with p-toluenesulfonic acid.
Beta-hydroxyselenoether compound and preparation method thereof
-
Paragraph 0066-0069, (2018/11/03)
The invention relates to a beta-hydroxy selenoether compound and a preparation method thereof. In an organic solvent, an epoxy compound and a benzoic acid are used as reaction raw materials, and elemental selenium is used as a selenization reagent for cas
Preparation method of beta-hydroxyphenyl selenide compound
-
Paragraph 0131; 0132; 0133; 0134; 0135; 0136; 0137-0139, (2017/12/27)
The invention relates to the technical field of synthesis of organic compounds and particularly relates to a preparation method of a beta-hydroxyphenyl selenide compound. The preparation method comprises the step of with aryl boronic acid with a structure presented by a formula (I), elemental selenium and an ethylene oxide derivative presented by a formula (II) as the raw materials, and carrying out insertion reaction on elemental selenium in a reaction solvent under the common effect of a copper catalyst, silver salt and alkali, so as to obtain the beta-hydroxyphenyl selenide compound represented by a formula (III), wherein R1 and R2 are respectively independently selected from one of H, a benzene ring, a naphthalene ring, a heterocyclic ring, a substituted benzene ring, linear alkyl, branched chain, halogen, nitryl and a cyano group.
Copper-Catalyzed Oxirane-Opening Reaction with Aryl Iodides and Se Powder
Min, Lin,Wu, Ge,Liu, Miaochang,Gao, Wenxia,Ding, Jinchang,Chen, Jiuxi,Huang, Xiaobo,Wu, Huayue
, p. 7584 - 7590 (2016/09/09)
Using Se powder as the selenating reagent, the copper-catalyzed double C-Se cross-coupling of aryl iodides, epoxides, and elemental selenium has been developed. This strategy provides a straightforward approach to the synthesis of β-hydroxy phenylselenides with excellent regioselectivity of the ring opening reaction. This process proceeds in generally good yields and is compatible with a broad range of functional groups.
A novel role of zeolite NaY in the thermal reaction of alkyl aryl selenoxides in its supercages
Zhang, Wanxuan,Yu, Haitao,Gao, Yu,Meng, Jiben,Matsuura, Teruo
, p. 498 - 499 (2007/10/03)
Thermal reaction of alkyl aryl selenoxides in the presence of water or methanol in the supercage of zeolite NaY gave β-hydroxy- or β-methoxyalkyl aryl selenides, respectively, and NaY played a novel role to stabilize reactive ArSeOH and to separate an anion of -OH from a carbonium ion which was simultaneously present with the -OH in a supercage.
A novel synthetic approach to β-arylselenenyl tertiary alcohols by the one-pot reaction of chloromethyl selenides and ketones promoted by samarium diiodide
Huang, Xian,Duan, De-Hui
, p. 1191 - 1192 (2007/10/03)
At ambient temperature, β-arylselenenyl tertiary alcohols can be conveniently synthesized with samarium diiodide, chloromethyl selenides and ketones by one-pot method in high yields.
Activation of Sn-Se bond: Regioselective ring opening reaction of epoxides with tributylstannyl phenylselenolate in the presence of a Lewis acid
Nishiyama, Yutaka,Ohashi, Hironori,Itoh, Kazuyoshi,Sonoda, Noboru
, p. 159 - 160 (2007/10/03)
When tributylstannyl phenylselenolate (Bu3SnSePh) was allowed to react with epoxides in the presence of BF3·OEt2 as a Lewis acid, the ring opening reaction of epoxides proceeded with complete regioselectivity to afford the
