Synthesis of Per(poly)fluoroalkyl aldehydes RF(CH2)nCHO
作者:Laurence Le´veˆque、Maurice Le Blanc、Raphae¨l Pastor
DOI:10.1016/s0040-4039(98)02029-2
日期:1998.11
We report the preparation of polyfluoroalkyl aldehydes RF(CH2)nCHO in high yields by direct oxidation of polyfluoroalkyl alcohols; the Swern oxidation, pyridinium chlorochromate and Dess-Martinperiodinane are used and compared
Atmospheric chemistry of C8F17CH2CHO: Yield from C8F17CH2CH2OH (8:2 FTOH) oxidation, kinetics and mechanisms of reactions with Cl atoms and OH radicals
作者:Malisa S. Chiappero、Gustavo A. Argüello、M.D. Hurley、T.J. Wallington
DOI:10.1016/j.cplett.2008.06.088
日期:2008.8
yield of C8F17CH2CHO in the chlorineatom initiated oxidation of C8F17CH2CH2OH (8:2 FTOH) in 700 Torr of air. Relative rate techniques were used to measure k(Cl + C8F17CH2CHO) = (1.9 ± 0.4) × 10−11 and k(OH + C8F17CH2CHO) = (2.0 ± 0.4) × 10−12 cm3 molecule−1 s−1 in 700 Torr of N2 or air diluent at 296 K. The results are discussed with respect to the atmosphericchemistry of fluorotelomer alcohols.
烟雾室/ FTIR技术用于测量在700托空气中,由氯原子引发的C 8 F 17 CH 2 CH 2 OH(8:2 FTOH)氧化反应中氯原子的C 8 F 17 CH 2 CHO的产率为92±7%。相对速率技术用于测量k(Cl + C 8 F 17 CH 2 CHO)=(1.9±0.4)×10 -11和k(OH + C 8 F 17 CH 2 CHO)=(2.0±0.4)×10 -12 cm 3分子-1 s -1在700 Torr的N 2中或在296 K的空气稀释剂中进行。关于氟调聚物醇的大气化学讨论了该结果。
Novel aerosol formulation containing a polar fluorinated molecule
申请人:——
公开号:US20030194378A1
公开(公告)日:2003-10-16
The present invention relates to a stable pharmaceutical aerosol formulation intended for inhalation. The formulation contains an active substance, an aerosol propellant, a polar flurorinated molecule and an excipient. The preferred propellant is HFA 134a or HFA 227 or a mixture thereof.
Tang, Xiao-Qing; Hu, Chang-Ming, Journal of the Chemical Society. Perkin transactions I, 1994, # 15, p. 2161 - 2164
作者:Tang, Xiao-Qing、Hu, Chang-Ming
DOI:——
日期:——
Synthése de fluoroalkyl éthanl : RFCH2CHO
作者:Ph. Laurent、H. Blancou、A. Commeyras
DOI:10.1016/s0040-4039(00)92222-6
日期:1992.4
Aldehydes RFCH2CHO (R(F) is a linear perfluoroalkyl chain) have been obtained in the addition reaction of R(F)I to vinyl acetate in the presence of zinc. RFCH2CHIOAc is formed as an intermediate in the course of the reaction. Under appropriate conditions, RFCH2CHO and its acylal or acetal derivatives are obtained in good yields.