The hydrocracking of phenanthrene, anthracene, pyrene, chrysene, and fluoranthene over moltensaltcatalysts at 400 °C in the batch autoclave systems was examined. The products were mainly identified by means of GC-MS, but the representative products were isolated by preparative GLC and characterized by using NMR, IR, UV, and mass spectrometry. Most of the isolated products are compounds not previously
Deacylation-aided C–H alkylative annulation through C–C cleavage of unstrained ketones
作者:Xukai Zhou、Yan Xu、Guangbin Dong
DOI:10.1038/s41929-021-00661-7
日期:——
on the aromaticcore and a tethered alkyl moiety provides a straightforward approach to access these scaffolds; however, such a strategy is often hampered by the need of special reactive groups and/or less compatible cyclization conditions. It would be synthetically appealing if a common native functional group can be used as a handle to enable a general C–H annulation with diverse aromatic rings.
Efficient Synthesis of 9-Aryldihydrophenanthrenes by a Cascade Reaction Involving Arynes and Styrenes
作者:Sachin Suresh Bhojgude、Anup Bhunia、Rajesh G. Gonnade、Akkattu T. Biju
DOI:10.1021/ol4033094
日期:2014.2.7
A mild, general, and transition-metal-free protocol for the synthesis of 9,10-dihydrophenanthrenes is reported. The aryne generated by the fluoride-induced,1,2-elimination of 2-(trimethylsilyl)aryl triflates undergoes an efficient cascade reaction initiated by the Diels-Alder reaction with the differently substituted styrenes leading to the formation of 9-aryl-9,10-dihydrophenanthrene derivatives in moderate to good yields.
452. Metallation and carboxylation of chrysene
作者:S. E. Hunt、A. S. Lindsey
DOI:10.1039/jr9580002227
日期:——
Electroreduction of organic compounds. 28. Partial Hydrogenation of Polycyclic Aromatic Hydrocarbons by electroreduction in protic solvents
作者:S. Anowski、J. Voss
DOI:10.1002/prac.19963380166
日期:——
Polycyclic aromatic hydrocarbons (PAH) such as anthracene (1), phenanthrene (5), acenaphthylene (15), pyrene (17), chrysene (22), and fluoranthene (28) are selectively hydrogenated upon electroreduction at a lead cathode in ethanolic solution. The degree of hydrogenation and the structure of the products depend on the reaction conditions, in particular on the applied reduction potential.