One-pot synthesis of benzo[b]fluorenones via a cobalt-catalyzed MHP-directed [3+2] annulation/ring-opening/dehydration sequence

A cobalt-catalyzed MHP-directed [3+2] annulation of benzoyl hydrazines with oxabicyclic alkenes followed by a ring-opening/dehydration sequence is developed for the one-pot synthesis of benzo[b]fluorenones.

Chemoselective synthesis of isolated and fused fluorenones and their photophysical and antiviral properties

Metal-free substituent dependent synthesis of fluorescent fluorenones was reported.

Synthesis of 1-indanones with a broad range of biological activity

This comprehensive review describes methods for the preparation of 1-indanones published in original and patent literature from 1926 to 2017. More than 100 synthetic methods utilizing carboxylic acids, esters, diesters, acid chlorides, ketones, alkynes, alcohols etc. as starting materials, have been performed. This review also covers the most important studies on the biological activity of 1-indanones and their derivatives which are potent antiviral, anti-inflammatory, analgesic, antimalarial, antibacterial and anticancer compounds. Moreover, they can be used in the treatment of neurodegenerative diseases and as effective insecticides, fungicides and herbicides.

Ester-directed Ru-catalyzed C–O activation/C–C coupling reaction of ortho-methoxy naphthoates with organoboroneopentylates

A new, catalytic and general synthetic methodology for the construction of biaryls and heterobiaryls by the cross-coupling of ortho-methoxy naphthoates with organoboroneopentylates is disclosed.