A new synthesis of the tricyclic [10]annulene 7b-methyl-7bH-cyclopent [cd]indene
作者:Zev Lidert、Charles W. Rees
DOI:10.1039/c39820000499
日期:——
In a new versatile synthesis of the tricyclic [10]annulene, 7b-methyl-7bH-cyclopent[cd]indene, the third ring is formed by an intramolecular aldol condensation rather than a cycloaddition reaction.
在三环[10]环戊烯7b-甲基-7b H-环戊[ cd ]茚的新型通用合成中,第三个环是通过分子内羟醛缩合而不是环加成反应形成的。
Phenol–keto tautomerism in tricyclic [10]annulenes; preparation and properties of 7b-methyl-2a,7b-dihydrocyclopent[cd]inden-2-(2H)-one
作者:Raymond McCague、Christopher J. Moody、Charles W. Rees
DOI:10.1039/c39820000622
日期:——
The 2-‘phenol’ in the tricyclic [10]annulene series appears to exist entirely in the keto form (4); the ‘phenolate’ anion is readily formed, and can be methylated on oxygen, or on carbon to give isomer (9) exclusively.
7b-Methyl-7bH-cyclopent[cd]indene, an unsubstituted tricyclic aromatic [10]annulene
作者:Thomas L. Gilchrist、David Tuddenham、Raymond McCague、Christopher J. Moody、Charles W. Rees
DOI:10.1039/c39810000657
日期:——
The aromatic tricyclic [10]annulene (4) has been synthesised by bis-decarbonylation of the dialdehyde (3); on heating (4) rearranged into the 2aH-isomar (6).