Visible-Light-Induced Photoaddition of <i>N</i>-Nitrosoalkylamines to Alkenes: One-Pot Tandem Approach to 1,2-Diamination of Alkenes from Secondary Amines
作者:Dilip V. Patil、Tengda Si、Hun Young Kim、Kyungsoo Oh
DOI:10.1021/acs.orglett.1c00786
日期:2021.4.16
excitation at 453 nm. The developed visible-light-promoted photoadditionreaction of N-nitrosoamines to alkenes was combined with the o-NQ-catalyzed aerobic oxidation protocol of amines to telescope the direct handling of harmful N-nitroso compounds, where the desired α-amino oxime derivatives were obtained in a one-pot tandem N-nitrosation and photoaddition sequence.
Substrate Promiscuity of <i>ortho</i>-Naphthoquinone Catalyst: Catalytic Aerobic Amine Oxidation Protocols to Deaminative Cross-Coupling and <i>N</i>-Nitrosation
作者:Tengda Si、Hun Young Kim、Kyungsoo Oh
DOI:10.1021/acscatal.9b03442
日期:2019.10.4
been identified as versatile aerobicoxidationcatalysts. Primary amines were readily cross-coupled with primary nitroalkanes via deaminative pathway to give nitroalkene derivatives in good to excellent yields. Secondary and tertiary amines were inert to ortho-naphthoquinone catalysts; however, secondary nitroalkanes were readily converted by ortho-naphthoquinone catalysts to the corresponding nitrite
EXPERIMENTAL CHEMOTHERAPY OF FILARIASIS. V. THE PREPARATION OF DERIVATIVES OF PIPERAZINE
作者:S. KUSHNER、L. M. BRANCONE、R. I. HEWITT、W. L. McEWEN、Y. SUBBAROW、H. W. STEWART、R. J. TURNER、J. J. DENTON
DOI:10.1021/jo01159a019
日期:1948.1
Visible-Light-Promoted Photoaddition of <i>N</i>-Nitrosopiperidines to Alkynes: Continuous Flow Chemistry Approach to Tetrahydroimidazo[1,2-<i>a</i>]pyridine 1-Oxides
作者:Dilip V. Patil、Yulim Lee、Hun Young Kim、Kyungsoo Oh
DOI:10.1021/acs.orglett.2c02402
日期:2022.8.12
2-a]pyridine 1-oxides was achieved via the dehydrogenative cycloisomerization of β-nitroso enamine intermediates. The decomposition pathways of N-nitrosamines, alkynes, and β-nitroso enamine intermediates were better handled in a continuous flow setting through the diffusion control of chemical species that negatively affected the formation of tetrahydroimidazo[1,2-a]pyridine 1-oxides under batch reaction
N-亚硝基哌啶与末端炔烃的光加成是在可见光照射下进行的,其中通过β-亚硝基烯胺中间体的脱氢环异构化获得了四氢咪唑并[1,2 - a ]吡啶1-氧化物的新合成途径。N-亚硝胺、炔烃和 β-亚硝基烯胺中间体的分解途径在连续流动环境中通过化学物质的扩散控制得到更好的处理,这些化学物质在间歇反应条件。