作者:Christopher M. Timperley、Robert E. Arbon、Sally A. Saunders、Matthew J. Waters
DOI:10.1016/s0022-1139(01)00468-7
日期:2002.1
phosphorus trichloride with tert-butanol and fluoroalcohols gave bis(fluoroalkyl) phosphites (RFO)2P(O)H in 42–89% yield, where RF=HCF2CH2, H(CF2)2CH2, H(CF2)4CH2, CF3CH2, C2F5CH2, C3F7CH2, (CF3)2CH, (FCH2)2CH, CF3(CH3)2C, (CF3)2CH3C, CF3CH2CH2, C4F9CH2CH2 and C6F13CH2CH2. Treatment of these with chlorine in dichloromethane gave the bis(fluoroalkyl) phosphorochloridates (RFO)2P(O)Cl in 49–96% yield. The chloridate
A Convenient Approach to the Synthesis of Deoxyribonucleoside-3′-hydrogen Phosphonates via Bis(1,1,1,3,3,3-hexafluoro-2-propyl) Phosphonate Intermediate
Transesterification of a new reagent, bis(1,1,1,3,3,3-hexafluoro-2-propyl)phosphonates was found to be very effective for the preparation of deoxyribonucleoside-3′-hydrogen phosphonates. The yields of deoxyribooligonucleotides by the H-phosphonate method on a solid support depended on the molar concentrations of the reacting species.
Synthesis and characterization of new bis(fluoroalkyl) phosphoramidates bearing sulfoximine groups
作者:Hanen Mechi、M.A.K. Sanhoury、F. Laribi、M. T. Ben Dhia
DOI:10.1080/17415993.2021.1931213
日期:2021.9.3
A series of new sulfoximine derived bis(fluoroalkyl)phosphoramidates of the type MeRS(O)NP(O)(ORF)2 (R = Me or Ph; RF = CH2CF3, CH2C2F5, CH(CF3)2, CH2CH2C6F13 or CH2CH2C8F17) have been synthesized from phosphoramidation reaction of sulfoximine with bis(polyfluoroalkyl)phosphites as phosphorylatingagents. These fluoroalkyl phosphoramidates were characterized by multinuclear (1H, 13C, 19F and 31P) NMR
一系列新的亚砜亚胺衍生的双(氟烷基)氨基磷酸酯,类型为 MeRS(O)NP(O)(OR F ) 2 (R = Me 或 Ph;R F = CH 2 CF 3 , CH 2 C 2 F 5 , CH (CF 3 ) 2、CH 2 CH 2 C 6 F 13或CH 2 CH 2 C 8 F 17 )是由亚砜亚胺与作为磷酸化剂的双(多氟烷基)亚磷酸酯的磷酰胺化反应合成的。这些氟代烷基氨基磷酸酯的特点是多核(1 H、13 C、19 F 和31 P) NMR、IR 和元素分析。检查了不同的文献方法;结果表明,虽然在此类反应中氟代烷氧基的存在比非氟化类似物具有更好的反应性,但氨基磷酸酯形成方法的选择取决于亚砜亚胺和氟代烷氧基的性质。
Catalytic Enantioselective Pudovik Reaction of Aldehydes and Aldimines with Tethered Bis(8-quinolinato) (TBOx) Aluminum Complex
作者:Joshua P. Abell、Hisashi Yamamoto
DOI:10.1021/ja803859p
日期:2008.8.13
New chiral tethered bis(8-quinolinolato) (TBOx) aluminum(III) complexes effectively catalyze the addition of phosphites to aldehydes and aldimines to give enantioenriched alpha-hydroxy and a-amino phosphonates in high yields and enantioselectivities with unprecedented reactivity (TON = 100 as high as 200). The catalyst is optimized with the low catalyst loading of 0.5 - 1.0 mol %. The modular synthesis of the catalyst allows for potential to tune the reaction for maximum catalytic activity. To date there are few examples with broad substrate scopes that can catalyze both aldehydes and aldimines with such high selectivity and no reports utilizing such low catalyst loading.
Mironov, V. F.; Konovalova, I. V., Russian Journal of General Chemistry, 1993, vol. 63, # 10.1, p. 1548 - 1550