A gold-catalyzed facile intramolecular rearrangement and cyclization sequence for synthesis of 2,5-dihydrofurans

Sunil Komalla; Thummala Yadagiri; Dalovai Purnachandar; Balasubramanian Sridhar; Karunakar Galla V.

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A gold-catalyzed facile intramolecular rearrangement and cyclization sequence for synthesis of 2,5-dihydrofurans

机译：金催化的分子内重排和环化序列合成2，5-二氢呋喃

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An efficient gold-catalyzed intramolecular rearrangement and cyclization protocol was developed for synthesis of 2,5-dihydrofuran derivatives from O-propargyl beta-enaminones. In this organic transformation new C-C and C-O bonds are formed under mild reaction conditions; this includes the formation of a quaternary centre.

机译：开发了一种有效的金催化的分子内重排和环化方案，用于从O-炔丙基β-烯胺酮合成2,5-二氢呋喃衍生物。在这种有机转化中，在温和的反应条件下会形成新的C-C和C-O键；这包括组建四级中心。

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《Organic & biomolecular chemistry》 |2019年第24期|6015-6024|共10页
作者
Sunil Komalla; Thummala Yadagiri; Dalovai Purnachandar; Balasubramanian Sridhar; Karunakar Galla V.;
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Indian Inst Chem Technol, CSIR, Dept Fluoro & Agrochem, Hyderabad 500007, Andhra Pradesh, India;

Indian Inst Chem Technol, CSIR, Dept Fluoro & Agrochem, Hyderabad 500007, Andhra Pradesh, India|Acad Sci & Innovat Res, Ghaziabad 201002, India;

Indian Inst Chem Technol, CSIR, Dept Fluoro & Agrochem, Hyderabad 500007, Andhra Pradesh, India|Acad Sci & Innovat Res, Ghaziabad 201002, India;

Indian Inst Chem Technol, CSIR, Ctr Xray Crystallog, Hyderabad 500007, Andhra Pradesh, India;

Indian Inst Chem Technol, CSIR, Dept Fluoro & Agrochem, Hyderabad 500007, Andhra Pradesh, India|Acad Sci & Innovat Res, Ghaziabad 201002, India;

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1. Synthesis of 2-alkyl- and aryl-3-ethoxycarbonyl-2,5-dihydrofurans through gold-catalyzed intramolecular hydroalkoxylation [J] . Eom D., Kang D., Lee P.H. The Journal of Organic Chemistry . 2010,第21期

机译：金催化分子内加氢烷氧基化反应合成2-烷基-和芳基-3-乙氧基羰基-2,5-二氢呋喃
2. Sulfinate Allenyl Carbenoids: Synthesis of 2,5-Dihydrofurans by Domino Rearrangement and Cyclization [J] . Rama Rao Tata, Michael Harmata European journal of organic chemistry . 2018,第3期

机译：硫酸盐亚甲苯甲苯：通过多米诺重排和环化合成2,5-二氢呋喃烷
3. Synthesis of Highly Functionalized Allene-Appended Oxindoles and 2-Oxo-1,2-dihydroindol-3-ylidene-2,5-dihydrofurans via Claisen Rearrangement and Cyclization [J] . Vadivel Vaithiyanathan, Kodirajan Selvakumar, Ponnusamy Shanmugam Synlett . 2009,第10期

机译：克莱森重排和环化反应合成高功能化烯丙基的吲哚和2-Oxo-1,2-二氢吲哚-3-亚基-2,5-二氢呋喃
4. Electrochemical Synthesis of Heterohelicenes via OxidativeHetero-coupling/Intramolecular Cyclization Sequence [C] . Md.Imrul Khalid, Makoto Sako, Shinobu Takizawa 日本化学会春季年会 . 2020

机译：通过氧化剂偶联/分子内环化序列的电化学合成异酸
5. Part I: A facile approach towards eight-membered N-heterocycles: aza-Wittig/retro-Claisen rearrangement. Part II: Studies towards the total synthesis of (-)-Nakadomarin A. [D] . Chen, Ke. 2006

机译：第一部分：八元N-杂环的简便方法：aza-Wittig / retro-Claisen重排。第二部分：（-）-Nakadomarin A的全合成研究。
6. Facile access to diverse all-carbon quaternary center containing spirobicycles by exploring a tandem Castro–Stephens coupling/acyloxy shift/cyclization/semipinacol rearrangement sequence [O] . Ye Zhang, Tian-Lu Zheng, Fu Cheng, 2020

机译：通过探索串联Castro-Stephens偶联/酰氧基移/环化/半藻醇重排序列可以进入含有螺旋自动剪辑的各种全碳四元度中心
7. The intramolecular cyclization of bis-2,5-dimethylene-2,5-dihydrofurans and bis-2,5-dimethylene-2,5-dihydrothiophenes: an approach to macrocycles [O] . Klumpp, Douglas Allen 1993

机译：bis-2,5-二亚甲基-2,5-二氢呋喃和bis-2,5-二亚甲基-2,5-二氢噻吩的分子内环化：大环化合物的研究
8. Intramolecular cyclization of bis-2,5-dimethylene-2,5-dihydrofurans and bis-2,5-dimethylene-2,5-dihydrothiophenes: An approach to macrocycles [R] . Klumpp, DA 1994

机译：双-2,5-二亚甲基-2,5-二氢呋喃和双-2,5-二亚甲基-2,5-二氢噻吩的分子内环化：大环化合物的一种方法

A gold-catalyzed facile intramolecular rearrangement and cyclization sequence for synthesis of 2,5-dihydrofurans

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