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作者:Chencong Xu , Tao Li , Pingkai Jiang ...
来源:[J].Tetrahedron(IF 2.803), 2020, Vol.76 (16)
摘要:Abstract(#br)An efficient and practical approach to phosphonium salts has been developed. By the reaction of phosphines and different acid sources with orthoformates in one-step operation, the process allowed rapid access to phosphonium salts with diverse counterions in high yiel...
作者:Artem V. Tsymbal , Vitalij V. Levin , Marina I. Struchkova ...
来源:[J].Journal of Fluorine Chemistry(IF 1.939), 2018, Vol.205, pp.58-61
摘要:Abstract(#br)gem -Difluorinated phosphonium salts, generated from aldehydes and difluorinated phosphobetaine reagent, were converted into corresponding silicon reagents. The reductive silylation of carbon-phosphorus bond is carried out using a combination of magnesium and chlorot...
作者:Chuan-Le Zhu , Xiao-Yun Fu , Ai-Jia Wei ...
来源:[J].Journal of Fluorine Chemistry(IF 1.939), 2013, Vol.150, pp.60-66
摘要:Abstract(#br)Asymmetric electrophilic fluorination of 3-substituted benzofuran-2(3 H )-ones was realized under liquid–liquid phase-transfer catalysis with 2 mol% of chiral phosphonium salts to afford the fluorinated products with up to 96% yield and 56% ee.
作者:R.Alan Aitken , Nazira Karodia
来源:[J].Tetrahedron(IF 2.803), 1998, Vol.54 (31), pp.9223-9228
摘要:Abstract(#br)The simple phosphonium salts 4 and 5 have been fully characterised for the first time and are found by NMR spectroscopy to exist in CDCl 3 solution mainly as the E and Z enol structures b and c . The salt 6 exists as a mixture of the keto form a and one enol form ass...
作者:L. Atmaca , I. Kayihan , Y. Yagci
来源:[J].Polymer(IF 3.379), 2000, Vol.41 (16), pp.6035-6041
摘要:Abstract(#br)Three allylic triphenyl phosphonium salts, namely allylphosphonium (AP), methyl allylphosphonium (MAP) and ethoxy carbonyl allylphosphonium (ECAP) salts with a hexafluoroantimonate counter anion were synthesized and characterized. Their capability to act as init...
作者:James J Kiddle
来源:[J].Tetrahedron Letters(IF 2.397), 2000, Vol.41 (9), pp.1339-1341
摘要:Abstract(#br)Several phosphonium salts have been prepared using a domestic microwave oven. The microwave enhanced reaction of triphenylphosphine and an organic halide shows a remarkable rate acceleration under microwave irradiation and allows the general and facile synthesis of b...
作者:Christine M. Moore , Sarah Hackman , Terrance Brennan ...
来源:[J].Journal of Membrane Science(IF 4.093), 2004, Vol.254 (1), pp.63-70
摘要:Abstract(#br)This research examined how the physical properties of Nafion ® are affected by mixture casting Nafion ® with quaternary phosphonium salts. Quaternary phosphonium salts can be mixture cast with commercially available Nafion ® suspension to form membranes with dec...
作者:Wenqiang Tan , Jingjing Zhang , Fang Luan ...
来源:[J].International Journal of Biological Macromolecules(IF 2.596), 2017, Vol.102, pp.704-711
摘要:Abstract(#br)Two novel chitosan derivatives modified with quaternary phosphonium salts were successfully synthesized, including tricyclohexylphosphonium acetyl chitosan chloride (TCPACSC) and triphenylphosphonium acetyl chitosan chloride (TPPACSC), and characterized by FTIR, 1 H ...
作者:A.H. Nahlé , T.J. Harvey , F.C. Walsh
来源:[J].Journal of Alloys and Compounds(IF 2.39), 2018, Vol.765, pp.812-825
摘要:Abstract(#br)Cathodic and anodic Tafel extrapolation data for the corrosion inhibition of iron in deaerated 1 M HCl at 22 °C are obtained for five synthesized phosphonium salts, 4-tolyltriphenyl-phosphonium chloride (TTPPC), 4-phenoltriphenylphosphonium chloride (PTPPC), 4-an...
作者:Kei Manabe
来源:[J].Tetrahedron(IF 2.803), 1998, Vol.54 (48), pp.14465-14476
摘要:Abstract(#br)Chiral phosphonium salts having two NH and two OH groups as hydrogen-bond donors have been synthesized as novel phase-transfer catalysts, and used for asymmetric alkylation of β-keto esters to give the corresponding products with up to 50% ee.

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