REGIOSELECTIVE SYNTHESIS OF SUBSTITUTED PTEROCARPANS AND PTEROCARPENES - LEWIS ACID TI(IV) PROMOTED FORMAL (3+2) CYCLOADDITION REACTIONS

Murugesh MG.; Trivedi GK.; Subburaj K.

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REGIOSELECTIVE SYNTHESIS OF SUBSTITUTED PTEROCARPANS AND PTEROCARPENES - LEWIS ACID TI(IV) PROMOTED FORMAL (3+2) CYCLOADDITION REACTIONS

机译：取代的五聚体和四碳的区域选择性合成-路易斯酸TI（IV）促进了正式的（3 + 2）循环负载反应

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A synthesis of novel pterocarpans (8a-e, 10a-e and 11a-e) and pterocarpenes (7a-d and 9a-c) has been carried out. This method involves the Lewis acid Ti (TV) promoted formal (3+2) cycloaddition reaction of 2-alkoxy-1,4-benzoquinones (6a-c) with appropriately substituted 2H-chromenes (1a-b, 2a-b and 5) at -78 degrees C. [References: 22]

机译：已经合成了新的角果皮（8a-e，10a-e和11a-e）和角皮烯（7a-d和9a-c）。该方法涉及路易斯酸Ti（TV）促进2-烷氧基-1,4-苯醌（6a-c）与适当取代的2H-色烯（1a-b，2a-b和5 ）在-78摄氏度。[参考：22]

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《Tetrahedron 》 |1996年第6期| 共12页
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Murugesh MG.; Trivedi GK.; Subburaj K.;
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中图分类有机化学 ;
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1. REGIOSELECTIVE SYNTHESIS OF SUBSTITUTED PTEROCARPANS AND PTEROCARPENES - LEWIS ACID TI(IV) PROMOTED FORMAL (3+2) CYCLOADDITION REACTIONS [J] . Murugesh MG., Trivedi GK., Subburaj K. Tetrahedron . 1996 ,第6期

机译：取代的五聚体和四碳的区域选择性合成-路易斯酸TI（IV）促进了正式的（3 + 2）循环负载反应
2. Expeditious, metal-free, domino, regioselective synthesis of highly substituted 2-carbonyl-and 2-phosphorylfurans by formal [3+2] cycloaddition [J] . Raimondi W., Dauzonne D., Constantieux T., European journal of organic chemistry . 2012 ,第31期

机译：通过正式的[3 + 2]环加成反应，快速，无金属，多米诺骨牌的区域选择性合成高度取代的2-羰基和2-磷酰基呋喃
3. Cycloadditions of Allylsilanes — Part 22.~1 Stereoselective Synthesis of Cyclopentanes and Cyclobutanes by Lewis Acid Promoted [3+2] and 12+21 Cycloadditions of Allylsilanes [J] . Arndt W. Schmidt, Hans-Joachim Knolker Synlett . 2010 ,第15期

机译：烯丙基硅烷的环加成反应-第22部分。〜1 Lewis酸促进的[3 + 2]和12 + 21烯丙基硅烷的环加成反应立体选择合成环戊烷和环戊二烯
4. Synthesis of Substituted 2,2'-Bipyridines by Cobalt-Catalyzed Cycloaddition Reactions of Nitriles and 1,6-Diynes with Exclusive Regioselectivity [C] . Taichi Ito, Avijit Goswami, Kazuhiko Ohtaki Symposium on Organometallic Chemistry . 2007

机译：用腈钴催化的环加成反应合成腈和1,6-迪杨的钴催化的循环加油反应
5. THE MECHANISM OF LEWIS ACID CATALYZED ENE REACTIONS. LEWIS ACID CATALYZED INTER- AND INTRAMOLECULAR (2+2) CYCLOADDITIONS OF CONJUGATED ALLENIC ESTERS TO ALKENES. THE REGIOCHEMISTRY OF TRIETHYLAMINE DEPROTONATION OF ALPHA, BETA-UNSATURATED ACID CHLORIDES TO FORM VINYLKETENES. ATTEMPTED SYNTHESIS OF ALPHA-BOURBONENE. [D] . RON, EYAL. 1987

机译：路易斯酸催化的烯反应的机理。路易斯酸将共轭的烯丙基酯间和分子内（2 + 2）的循环负载成烯烃。乙酰胺，β-不饱和酸氯化物形成乙烯基酮的三乙胺质子化反应的区域化学。尝试合成Alpha-Bourbonene。
6. Formal 3+2 Cycloaddition Reactions of Electron-Rich Aryl Epoxides with Alkenes under Lewis Acid Catalysis Affording Tetrasubstituted Tetrahydrofurans [O] . Víctor E. Macías-Villamizar, Luís Cuca-Suárez, Santiago Rodríguez, 2020

机译：富含四取代四氢呋喃的路易斯酸催化下富电子芳基环氧化物与烯烃的形式3 + 2环加成反应
7. Formal 3+2 Cycloaddition Reactions of Electron-Rich Aryl Epoxides with Alkenes under Lewis Acid Catalysis Affording Tetrasubstituted Tetrahydrofurans [O] . Víctor E. Macías-Villamizar, Luís Cuca-Suárez, Santiago Rodríguez, 2020

机译：在路易斯酸催化下，富含电子富含含有烯烃的芳基环氧胺的循环加成反应，得到催化四氢呋喃

REGIOSELECTIVE SYNTHESIS OF SUBSTITUTED PTEROCARPANS AND PTEROCARPENES - LEWIS ACID TI(IV) PROMOTED FORMAL (3+2) CYCLOADDITION REACTIONS

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