New Preparation of Ketenes for Intramolecular Cycloadditions

机译：用于分子内环加成的新型Ketenes制备

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A new preparation of ketenes for intramolecular cycloadditions involves a one-pot synthesis from the appropriate carboxylic acid to the ketene cycloaddition product. A tosylate leaving group rather than the conventional halide ion provides several advantages.

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Brady, W. T.; Marchand, A. P.; Giang, Y. F.; Wu, A. H.;
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年度 1987
页码 p.1-4
总页数 4
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Alkenes; Ketenes; Preparation; Carboxylic acids; Halides; Ions; Reprints;

机译：烯烃; Ketenes;制备;羧酸;卤化物;离子;重印;

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1. A novel approach toward the synthesis of strigolactones through intramolecular [2+2] cycloaddition of ketenes and ketene-iminiums to olefins. Application to the asymmetric synthesis of GR-24 [J] . Mathilde Lachia, Pierre M. J. Jung, Alain De Mesmaeker Tetrahedron letters: The International Journal for the Rapid Publication of Preliminary Communications in Organic Chemistry . 2012,第34期

机译：通过烯酮和烯酮-亚胺的分子内[2 + 2]环加成到烯烃的方法，合成链脲内酯的新方法。在GR-24不对称合成中的应用
2. Intramolecular [2 + 2] Cycloadditions of Alkyl(phenylthio)ketenes: Total Synthesis of (+)-Sphaerodiol [J] . Xiang Wu, Hai-Jun Wang, Yong-Shuang Huang, Organic letters . 2018,第7期

机译：烷基的分子内[2 + 2]烷基环加成（苯硫基）酮：全合成（+） - sphaerodiol
3. Regioselectivity and Reactivity of Intramolecular [2+2] Cycloaddition Reactions of Acyl Ketenes: Experimental and Theoretical Studies [J] . Mahboobeh Zahedifar, Hassan Sheibani, Vahid Saheb Synlett . 2018,第14期

机译：分子内的区域选择性和反应性[2 + 2]丙基ketenes的环加成反应：实验和理论研究
4. Intramolecular Benzyne–Phenol 4+2 Cycloaddition Enabled by Silicon-Tether Strategy [C] . Arata Nishii, Hiroshi Takikawa, Keiichi Hirano 日本化学会春季年会講演予稿集 . 2018

机译：通过硅系绳策略实现了分子内苯酚4 + 2环形装饰
5. Studies on aza-cycloaddition: Part 1. Intramolecular ketene-imine cycloaddition Part 2. Iminium ion-mediated [4+2] cycloaddition [D] . Park, Jung-hyun 2010

机译：氮杂-环加成反应的研究：第1部分。分子内烯酮-亚胺环加成反应；第2部分。亚胺离子介导的[4 + 2]环加成反应
6. Intramolecular 2+2 cycloaddition reactions of alkynyl ether-derived ketenes. A convenient synthesis of donor-acceptor cyclobutanes [O] . Vincent Tran, Thomas G. Minehan -1

机译：分子内2 + 2的炔醚衍生的烯酮的环加成反应。施主 - 受主环丁烷的简便合成
7. The Preparation and Photoreation of Spirooxirane-2,6′-tricyclo3.2.1.02,7oct3en-8′-ones. An Intramolecular Cycloaddition of Photochemically Generated Ketene with the Epoxide Ring [O] . Makoto Nitta, Akihiko Omata, Hazime Nakatani 1983

机译：螺旋的制剂和光容鉴奥酮烷-2,6'-Tricyclo 3.2.1.02,7 _€3 en -8'-＆。用环氧化物环提供光化学生成的酮的分子内环绕性
8. Intramolecular (2 + 2) Cycloadditions of Ketenes to Carbonyl Groups. A Novel Synthesis of Substituted Benzofurans [R] . Brady, W. T., Giang, Y. S. F., Marchand, A. P., 1987

机译：Ketenes与羰基的分子内（2 + 2）环加成反应。一种新的取代苯并呋喃的合成

New Preparation of Ketenes for Intramolecular Cycloadditions

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