Adcock,W. et al., Australian Journal of Chemistry, 1970, vol. 23, p. 1921 - 1937
作者:Adcock,W. et al.
DOI:——
日期:——
Palladium-Catalyzed [3 + 2] Annulation of Aryl Halides with 7-Oxa- and 7-Azabenzonorbornadienes via C(sp<sup>2</sup> or sp<sup>3</sup>)–H Activation
作者:Xiaojiao Li、Xianting Pan、Zisong Qi、Xingwei Li
DOI:10.1021/acs.orglett.2c03422
日期:2022.12.16
epoxy-5H-benzo[b]fluorenes, and their aza analogues have been accessed via palladium-catalyzed exo-selective [3 + 2] annulation between aryl halides and 7-oxa- and 7-azabenzonorbornadienes. The reaction is initiated by the oxidative addition of a carbon–halogen bond, with intramolecular C(sp2 or sp3)–H activation being a key step. The enantioselective version of the reaction was also briefly explored.
通过钯催化的芳基卤化物和 7-oxa- 和 7 之间的外选择性 [3 + 2] 环化,获得了一系列环氧苯并 [ k ] 荧蒽、环氧 -5 H -苯并 [ b ] 芴及其氮杂类似物-氮杂苯并降冰片二烯。该反应由碳-卤键的氧化加成引发,分子内 C(sp 2或 sp 3 )-H 活化是关键步骤。还简要探讨了该反应的对映选择性版本。
Synthesis of Polysubstituted Naphthalenes by a Hydride Shift Mediated C–H Bond Functionalization/Aromatization Sequence
作者:Koutarou Amano、Tomoko Kawasaki-Takasuka、Keiji Mori
DOI:10.1021/acs.orglett.3c04355
日期:2024.3.8
A synthetic strategy for forming multisubstituted naphthalenes based on hydride shift mediated C(sp3)–H bond functionalization was developed. This strategy consists of three successive transformations: (1) an intramolecular hydride shift mediated C(sp3)–H bond functionalization; (2) a decarboxylative fragmentation; and (3) an oxidation reaction. When benzylidene malonates having a 2-alkoxyethyl group