SWITCHABLE REGIOSELECTIVITY IN LEWIS ACID-PROMOTED REACTIONS OF 1,4-BENZOQUINONE MONOIMIDES WITH STYRENYL SYSTEMS - SELECTIVE SYNTHESES OF EITHER 2-ARYL-2,3-DIHYDROBENZOFURANS OR 2-ARYL-2,3-DIHYDROINDOLES

Engler TA.; Lynch KO.; Chai WY.

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SWITCHABLE REGIOSELECTIVITY IN LEWIS ACID-PROMOTED REACTIONS OF 1,4-BENZOQUINONE MONOIMIDES WITH STYRENYL SYSTEMS - SELECTIVE SYNTHESES OF EITHER 2-ARYL-2,3-DIHYDROBENZOFURANS OR 2-ARYL-2,3-DIHYDROINDOLES

机译：1,4-苯并甲醌单酰亚胺与苯乙烯基体系的路易斯酸促进反应中的可切换区域选择性-2-ARYL-2,3-二氢苯并呋喃或2-ARYL-2,3-二氢吲哚的选择性合成

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Reactions of 4-(N-phenylsulfonyl)-2-alkoxy-1,4-benzoquinone monoimines with electron-rich propenylbenzenes promoted by BF3 yield 7-alkoxy-2-aryl-3-methyl-5-(N-phenylsulfonyl)amino-2,3-dihydrobenzofurans nearly exclusively; whereas, promotion of the reactions by >2 equiv of Ti(IV) gives mainly N-phenylsulfonyl-6alkoxy-2-aryl-5-hydroxy-3-methyl-2,3-dihydoinidoles. [References: 17]

机译：4-（N-苯基磺酰基）-2-烷氧基-1,4-苯醌单亚胺与BF3促进的富电子丙烯基苯反应生成7-烷氧基-2-芳基-3-甲基-5-（N-苯基磺酰基）氨基- 2,3-二氢苯并呋喃几乎全部是;相反，通过> 2当量的Ti（IV）促进反应，主要得到N-苯基磺酰基-6烷氧基-2-芳基-5-羟基-3-甲基-2,3-二氢吲哚。 [参考：17]

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《Tetrahedron letters: The International Journal for the Rapid Publication of Preliminary Communications in Organic Chemistry》 |1995年第39期|共4页
作者
Engler TA.; Lynch KO.; Chai WY.;
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正文语种 eng
中图分类有机化学;
关键词
Diels-alder reactions; Pterocarpans; Steroids; Quinones;

机译：Diels-alder反应;罗汉果;甾类;奎奴酮;

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1. SWITCHABLE REGIOSELECTIVITY IN LEWIS ACID-PROMOTED REACTIONS OF 1,4-BENZOQUINONE MONOIMIDES WITH STYRENYL SYSTEMS - SELECTIVE SYNTHESES OF EITHER 2-ARYL-2,3-DIHYDROBENZOFURANS OR 2-ARYL-2,3-DIHYDROINDOLES [J] . Engler TA., Lynch KO., Chai WY. Tetrahedron letters: The International Journal for the Rapid Publication of Preliminary Communications in Organic Chemistry . 1995,第39期

机译：1,4-苯并甲醌单酰亚胺与苯乙烯基体系的路易斯酸促进反应中的可切换区域选择性-2-ARYL-2,3-二氢苯并呋喃或2-ARYL-2,3-二氢吲哚的选择性合成
2. Lewis Acid-Promoted Reactions of Styrenyl Systems with Benzoquinone Bisimines: New Regioselective Syntheses of Substituted 2-Aryl-2,3-dihydroindoles and 2-Arylindoles [J] . Thomas A. Engler, Steven P. Meduna, Kenneth O. LaTessa, The Journal of Organic Chemistry . 1996,第24期

机译：刘易斯酸促进的苯乙烯基系统与苯醌双嘧啶的反应：取代的2-芳基-2,3-二氢吲哚和2-Arylindoles的新的区域选择性合成。
3. CYCLOADDITION REACTIONS OF 1,4-BENZOQUINONE MONO- AND BISIMIDES WITH STYRENYL SYSTEMS - NEW SYNTHESES OF NITROGEN SUBSTITUTED AZAPTEROCARPANS, PTEROCARPANS, 2-ARYL-2,3-DIHYDROINDOLES AND -DIHYDROBENZOFURANS [J] . Engler TA., Chai WY., Meduna SP., Tetrahedron letters: The International Journal for the Rapid Publication of Preliminary Communications in Organic Chemistry . 1995,第16期

机译：1,4-苯甲酮单-和双酰亚胺与苯乙烯基体系的环加成反应-氮取代的氮杂环戊烷，戊三烷，2-ARYL-2,3-二氢吲哚和-二氢吲哚呋喃的新合成
4. The unique regioselectivity in the formation of disubstituted-1,4-benzoquinones generated from the reaction of 4-hydroxycoumarins with 1,4-benzoquinone [O] . Zhang SL, Huang ZS, Shen YD, 2006

机译：4-羟基香豆素与1,4-苯醌反应生成的二取代-1,4-苯醌形成中的独特区域选择性

SWITCHABLE REGIOSELECTIVITY IN LEWIS ACID-PROMOTED REACTIONS OF 1,4-BENZOQUINONE MONOIMIDES WITH STYRENYL SYSTEMS - SELECTIVE SYNTHESES OF EITHER 2-ARYL-2,3-DIHYDROBENZOFURANS OR 2-ARYL-2,3-DIHYDROINDOLES

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