Palladium charcoal-catalyzed deprotection of O-allylphenols
摘要:
Allyl aryl ethers can be easily cleaved by the use of 10% Pd/C under mild and basic conditions. The present reaction would involve a SET process rather than a pi-allyl-palladium complex. The scope and limitation of this new deprotective methodology is also described. (C) 2004 Elsevier Ltd. All rights reserved.
Copper nanoparticles (CuNPs) catalyzed chemoselective reduction of nitroarenes in aqueous medium
作者:Randhir Rai、Dillip Kumar Chand
DOI:10.1007/s12039-021-01940-3
日期:2021.9
established, under appropriate reaction conditions, using rice (Oryza sativa) as an economic source of reducing as well as a stabilizing agent. Optical and microscopic techniques are employed for the characterization of the synthesized CuNPs and the sizes of the particles were found to be in the range of 8 ± 2 nm. The nanoparticles are used as a catalyst for chemoselective reduction of aromaticnitro compounds
An efficient dehydrogenativeDiels–Alder (DHDA) reaction of prenylderivatives with 2,3‐dichloro‐5,6‐dicyanobenzoquinone (DDQ) has been developed under mild conditions, leading to a series of cyclohexene derivatives with good to excellent yields and excellent diastereoselectivity.
Development, Synthesis, and in silico Investigations of Novel Acyclic Allyl Fluoride Derivatives
作者:Vaneet Saini、Nishita Chauhan、Harjinder Singh、Kamal Nain Singh、Jeffrey M. McKenna
DOI:10.1055/a-1961-8013
日期:2023.3
A onestep electrophilic fluorination of alkenes is reported, which furnishes the products in a highly regioselective manner via allylic rearrangement. The reaction proceeds efficiently under mild conditions with the use of trisubstituted alkenes as olefin partner and Selectfluor as an electrophilic fluorinating agent without the need of any transition metal catalyst or pre-functionalized substrates