A general method for the synthesis of 1,1-difluoroalkylphosphonates
摘要:
A facile method for preparing 1,1-difluoroalkylphosphonates has been developed that features radical deoxygenation of thionocarbonates derived from the adducts formed upon addition of 9 to aldehydes.
Copper-Mediated Introduction of the CF<sub>2</sub>
PO(OEt)<sub>2</sub>
Motif: Scope and Limitations
作者:Maria V. Ivanova、Alexandre Bayle、Tatiana Besset、Xavier Pannecoucke、Thomas Poisson
DOI:10.1002/chem.201703542
日期:2017.12.6
can be functionalised. The procedure allows the conversion of aryldiazoniumsalts, as well as aryl, heteroaryl, vinyl and alkynyl iodonium salts, into the corresponding fluorinated molecules at room temperature. Mechanistic studies were performed to gain a better understanding of the reaction pathway. Under similar conditions, vinyl and aryl iodides, allyl halides, and benzyl bromides were also functionalised
Fluorine in enzyme Chemistry: Part 1. Synthesis of difluoromethylenephosphonate derivatives as phosphate mimics
作者:R.D. Chambers、R. Jaouhari、D. O'Hagan
DOI:10.1016/s0022-1139(00)83944-5
日期:1989.8
Diethyl difluoromethylphosphonylcadmium bromide reacts with allyl and benzyl halides in THF to give the corresponding difluoromethylenephosphonate derivatives. The reaction with allyl bromide affords a versatile synthetic intermediate which undergoes a variety of synthetic transformations and therefore becomes a key compound in the preparation of elaborated difluoromethylenephosphonates of biological
SAR of non-hydrolysable analogs of pyridoxal 5′-phosphate against low molecular weight protein tyrosine phosphatase isoforms
作者:Shirin R. DeSouza、Maxwell C. Olson、Samantha L. Tinucci、Erica K. Sinner、Rebecca S. Flynn、Quinlen F. Marshall、Henry V. Jakubowski、Edward J. McIntee
DOI:10.1016/j.bmcl.2020.127342
日期:2020.8
a role in these diseases. Pyridoxal5′-phosphate (PLP) has been shown to act as a potent but, impractical micromolar inhibitor for both isoforms. In this study, a series of non-hydrolysable phosphonate analogs of PLP were designed, synthesized and tested against the two isoforms of LMW-PTP. Assay results demonstrated that the best inhibitor for both isoforms was compound 5 with a Kis of 1.84 μM (IFA)
α,α-Difluorophosphonates, which are readilyavailable from alkyl halides and diethyl difluoromethylphosphonate,undergo elimination of hydrogen fluoride using alkali metal alkoxidesto provide α-fluorovinylphosphonates in high yields and E/ Z selectivities.
A general method for the synthesis of 1,1-difluoroalkylphosphonates
作者:Stephen F. Martin、Daniel W. Dean、Allan S. Wagman
DOI:10.1016/s0040-4039(00)74156-6
日期:1992.3
A facile method for preparing 1,1-difluoroalkylphosphonates has been developed that features radical deoxygenation of thionocarbonates derived from the adducts formed upon addition of 9 to aldehydes.