Cobalt-catalyzed alkenylation of organomagnesium reagents
作者:Gérard Cahiez、Hovsep Avedissian
DOI:10.1016/s0040-4039(98)01266-0
日期:1998.8
Alkenyl iodides, bromides and chlorides react with organomagnesium reagents in THF, in the presence of Co(acac)2 and NMP (9 to 4 equiv.), to give the cross-coupling products in good yields. The reaction is chemoselective (aryl or alkyl bromides, esters and ketones) and stereoselective (≥99.5%).
[(C6H5)(3)C](+)[B(C6F5)(4)](-) effectively catalyzes the alkylmetallation of alkynes by using the alkylzirconium species, which is generated by the hydrozirconation of alkenes. (C) 1999 Elsevier Science Ltd. All rights reserved.
Identification and Field Bioassay of <i>Rusicada privata</i> (Lepidoptera: Erebidae) Sex Pheromone
作者:Junheon Kim、Sujin Lee
DOI:10.1021/acs.jafc.3c00307
日期:2023.5.31
Rusicada privata (Lepidoptera: Erebidae) is a major pest insect on Hibiscus syriacus L. (Malvaceae: Malvales), which is usually planted in urban landscapes. Insecticidal control of R. privata is not ideal for urban landscaping due to its harmful effects and risk to human health. Therefore, nonchemical and ecofriendly alternatives are needed. To identify the sexpheromone of R. privata, abdominal tip