31021-02-0Relevant articles and documents
Activated charcoal-mediated synthesis of chalcones catalyzed by NaOH in water
Tanemura, Kiyoshi,Rohand, Taoufik
, (2021/02/27)
A variety of chalcones were synthesized in good yields by the activated charcoal-mediated aldol reactions between benzaldehydes and acetophenones catalyzed by NaOH in water. 2,6-Bis((E)-benzylidene)cyclohexan-1-ones were prepared by the aldol reactions between benzaldehydes and cyclohexanone. Activated charcoal could be recycled five times without the significant decrease of yields.
Redox-Neutral Cobalt(III)-Catalyzed C-H Activation/Annulation of α,β-Unsaturated Oxime Ether with Alkyne: One-Step Access to Multisubstituted Pyridine
Mohanty, Smruti Ranjan,Pati, Bedadyuti Vedvyas,Banjare, Shyam Kumar,Das Adhikari, Gopal Krushna,Ravikumar, Ponneri Chandrababu
, p. 1074 - 1083 (2021/01/14)
A redox neutral Co(III)-catalyzed annulation of α,β-unsaturated oxime ether with alkyne has been reported. Multisubstituted pyridines were synthesized in good yields without the use of any heavy metal oxidants. The developed methodology tolerates a variety of functional groups. Notably, this transformation has been applied to the late-stage modification of the bioactive molecule dehydropregnenolone.
Novel racemic chiral organic boron nitrogen fluorescent compound and preparation method thereof (by machine translation)
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Paragraph 0118-0125, (2020/05/05)
The novel chiral organic boron nitride fluorescent compound, is characterized in that, takes a cheap,readily available monoiodobenzene derivative, carboxylic acid derivative as a raw material, to react at a certain temperature with a common organic solvent as a reaction solvent, for a certain time, high yield, to selectively obtain a novel chiral organic boron nitrogen fluorescent compound . The catalyst, can be recovered, at a certain temperature for a certain period of time for a certain period of time to produce a novel chiral organic boron-nitrogen fluorescent compound with low cost,and a high yield, and selectivity, can be, obtained at a certain temperature for a certain period, of time with a certain period of time and high yield. (by machine translation)