Palladium‐Catalyzed Selective C‐F Bond Cleavage of Trifluoropropanamides Leading to (
Z
)‐
N
‐α‐Fluorovinylindoles
摘要:
AbstractA defluorinative heteroarylation of trifluoropropanamides through N‐chelation‐assisted palladium‐catalyzed selective C−F activation has been developed. This reaction is compatible with a variety of trifluoropropanamides and indoles under mild reaction conditions to provide the stereospecific (Z)‐N‐α‐fluorovinylindoles in moderate to good yields.magnified image
Synthesis, physico-chemical properties and microsomal stability of compounds bearing aliphatic trifluoromethoxy group
作者:Ivan G. Logvinenko、Yevheniia Markushyna、Ivan S. Kondratov、Bohdan V. Vashchenko、Maria Kliachyna、Yuliya Tokaryeva、Valentyna Pivnytska、Oleksandr O. Grygorenko、Günter Haufe
DOI:10.1016/j.jfluchem.2020.109461
日期:2020.3
Effects of the trifluoromethoxy substituent on physico-chemical properties of compounds, such as kinetic solubility, lipophilicity and microsomal clearance, was studied in a series of aliphatic derivatives. It was found that kinetic solubility of the CF3O-containing compounds was comparable to that of analogs, i.e. compounds bearing CH3O and CF3 moieties. The CF3O-substituted compounds had higher lipophilicity as compared to methoxy analogues, and nearly the same like CF3-bearing compounds. Microsomal stability studies indicated that the trifluoromethoxy group typically decreased metabolic stability of the corresponding derivatives as compared to either CH3O- or CF3-substituted counterparts, except for N-alkoxy(sulfon)amide series.