Unexpected Insertion of Nitrogen into a C–C Bond: Access to 2,3-Disubstituted Quinazolinone Scaffolds
作者:Hui-Li Liu、Xiao-Tong Li、Heng-Zhi Tian、Xing-Wen Sun
DOI:10.1021/acs.orglett.1c01235
日期:2021.6.18
A novel, practical, highly efficient, and transition metal free nitrogeninsertion reaction for the synthesis of 2,3-disubstituted quinazolinone derivatives was developed. Diverse functionalized 3-indolinone-2-carboxylates and nitrosoarenes with a wide range of substituted nitrosobenzenes, nitrosopyridines, dibenzofuranyl, or dibenzothienyl nitroso compounds worked smoothly to give 2,3-disubstituted
Synthesis of Trifluoromethylated Isoxazolidines: 1,3-Dipolar Cycloaddition of Nitrosoarenes, (Trifluoromethyl)diazomethane, and Alkenes
作者:Gary A. Molander、Livia N. Cavalcanti
DOI:10.1021/ol401402d
日期:2013.6.21
literature that provide trifluoromethylated versions of these compounds have prompted us to investigate a 1,3-dipolarcycloaddition route providing access to N-functionalized isoxazolidines containing a trifluoromethyl group. Thus, a 1,3-dipolarcycloaddition of nitrosoarenes, (trifluoromethyl)diazomethane, and alkenes was developed. The starting materials can be synthesized from easy to handle and accessible
Development of Nitroso-Based Probes for Labeling and Regulation of RAS Proteins in Cancer Cells via Sequential Ene-Ligation and Oxime Condensation
作者:Yuanyuan Li、Hongling Zhou、Huili Liu、Youfang Gan、Yaying Zheng、Jia Sheng、Rui Wang
DOI:10.1021/acs.joc.2c02922
日期:2023.2.3
which further condensate with oxime and rapidly react with a pomalidomide-containing hydroxylamine probe for protein degradation. As a result, the RAS protein in both HeLa and A549 cell lines has been determined to be efficiently degraded both in vitro and in vivo. This is the first case targeting post-translational modification other than ligand–protein interaction to degrade and regulate RAS proteins
Deciphering Regulatory Proteins of Prenylated Protein via the FRET Technique Using Nitroso-Based Ene-Ligation and Sequential Azidation and Click Reaction
作者:Youfang Gan、Yuanyuan Li、Hongling Zhou、Rui Wang
DOI:10.1021/acs.orglett.2c02662
日期:2022.9.16
Nitrosation of Aryl and Heteroaryltrifluoroborates with Nitrosonium Tetrafluoroborate
作者:Gary A. Molander、Livia N. Cavalcanti
DOI:10.1021/jo300551m
日期:2012.5.4
converted into a variety of different substituents in a late synthetic stage. In this paper, we disclose a mild, selective, and convenient method for the ipso-nitrosation of organotrifluoroborates using nitrosonium tetrafluoroborate (NOBF4). Aryl- and heteroaryltrifluoroborates were converted into the corresponding nitroso products in good to excellent yields. This method proved to be tolerant of a broad range