Silver(I) Promoted the C4–H Bond Phosphonation of 1-Naphthylamine Derivatives with H-Phosphonates
作者:Lixiao Zhao、Mengmeng Sun、Fan Yang、Yangjie Wu
DOI:10.1021/acs.joc.1c00971
日期:2021.9.3
A simple and efficient protocol for silver-promoted direct C–H phosphonation of 1-naphthylamine derivatives with H-phosphonates was described. This reaction proceeded smoothly for 1-naphthylamine derivatives at the C4 site, providing a facile and efficient route to 4-phosphonated 1-naphthylamine derivatives. This phosphonation could tolerate a diverse type of functional groups at the pyridinyl and
Synthesis of phosphonamidate peptides by Staudinger reactions of silylated phosphinic acids and esters
作者:Ina Wilkening、Giuseppe del Signore、Christian P. R. Hackenberger
DOI:10.1039/c0cc02472d
日期:——
The Staudinger reaction of unprotected azido-peptides with silylated phosphinicacids and esters on the solid support offers a straightforward acid-free entry to different phosphonamidate peptide esters or acids under mild conditions in high purity and yield.
Organobase-catalyzed [1,2]-Brook rearrangement of silyl glyoxylates
作者:Man-Yi Han、Fei-Yan Yang、Di Zhou、Zhigang Xu
DOI:10.1039/c7ob00005g
日期:——
A highly efficient [1,2]-Brook rearrangement of silyl glyoxylates has been developed using DBU as the organobase-catalyst. This [1,2]-Brook rearrangement is applicable to a number of thiols and secondary phosphine oxides containing acidic protons. These nucleophiles afford the corresponding Brook products in high yields. Using this methodology, a formal synthesis of anti-HIV drug compound lamivudine
Silver-promoted cascade radical cyclization of γ,δ-unsaturated oxime esters with P(O)H compounds: synthesis of phosphorylated pyrrolines
作者:Chen Chen、Yinwei Bao、Jinghui Zhao、Bolin Zhu
DOI:10.1039/c9cc08124k
日期:——
A cascade radicalcyclization was realized for the first silver-promoted imino-phosphorylation of γ,δ-unsaturated oxime esters, which provided a step-economical and redox-neutral route to access a variety of phosphorylated pyrrolines in good to excellent yields. Moreover, a new bulky trivalent phosphine ligand with a pyrroline motif was obtained through a deoxidation process.