氘代氟硫酸 、 [((C6F5)2PC2H4P(C6F5)2)Pt(η2-HCCCH3)] 以
further solvent(s) 为溶剂,
生成
参考文献:
名称:
Synthesis and Protonation Chemistry of (dfepe)Pt(η2-alkyne) Complexes
摘要:
An extension of prior protonolysis studies of platinum-carbon bonds to in situ generated Pt-C(sp(2)) bonds is reported. A series of (dfepe)Pt(eta(2)-RC=CR') complexes (R = Me, R' = H; R = tert-butyl, R' = H; R = Me3Si, R' = Me; R = Ph, R' = Me; R = R' = Me; R = R, = Ph) have been prepared by treatment of [(dfepe)Pt(mu-H)](2) with the corresponding alkyne in order to examine the addition of Bronsted acids to form the alkenyl complexes (dfepe)Pt(C(R')= C(H)R)(X). In the case where RC=CR' = propyne, a small (5%) amount of the propyne-bridged dimer [(dfepe)Pt](2)(mu-eta(2):eta(2)-MeC=CH) was also formed which could be prepared in pure form by the thermolysis of (dfepe)Pt(eta(2)-HC=CMe) (1) at 90degreesC. Dissolution of 1 in FSO3H at -80degreesC produced the double-proton-transfer propene adduct [(dfepe)Pt(eta(2)-H2C=C(H)Me)-(X)](+), without evidence for a propenyl Pt(II) intermediate. In contrast, dissolution of 1 in FSO3D at -80degreesC cleanly produced the fully deuterated propenyl complex (dfepe)Pt(C(D)= C(D)CD3)(OSO2F), which was characterized by P-31 and C-13 NMR. The direct observation of this initial proton-transfer intermediate in deuterated acid is ascribed to an unusually large kinetic isotope effect for the second proton-transfer step.
DOI:
10.1021/om0496838
作为产物:
描述:
三氧化硫 、 重氢氟化 以
neat (no solvent) 为溶剂,
以79%的产率得到氘代氟硫酸
参考文献:
名称:
H/D isotope exchange between methane and magic acid (HSO3F–SbF5): an in situ NMR study
The Protiotetramethylammonium Dication (CH<sub>3</sub>)<sub>3</sub>NCH<sub>4</sub><sup>2+</sup>: Hydrogen/Deuterium Exchange and Calculational Studies. Search for the Parent Protioammonium Dication NH<sub>5</sub><sup>2+</sup> <sup>1</sup>
作者:George A. Olah、Arwed Burrichter、Golam Rasul、G. K. Surya Prakash
DOI:10.1021/ja962572i
日期:1997.5.1
The protonation of ammonium ions NR4+ (R = H, CH3) to form the corresponding protioammonium dications HNR42+ (R = H, CH3) was investigated by hydrogen/deuteriumexchange experiments and by ab initio molecular orbital calculations. Hydrogen/deuteriumexchange was observed by 2H NMR spectroscopy at the CH3 groups of tetramethylammonium ion N(CH3)4+ when reacted with excess DF:SbF5 superacid. On the basis
Herrmann, Wolfgang A.; Plank, Johann; Guggolz, Ernst, Angewandte Chemie, 1980, vol. 92, p. 660 - 662
作者:Herrmann, Wolfgang A.、Plank, Johann、Guggolz, Ernst、Ziegler, Manfred L.
DOI:——
日期:——
The tetrahydridosulfonium dication, H4S2+: hydrogen-deuterium exchange of hydrogen sulfide (DH2S+) in fluorosulfuric acid-d:antimony pentafluoride and hydrogen sulfide (D2HS+) in fluorosulfuric acid:antimony pentafluoride and theoretical calculations
作者:George A. Olah、G. K. Surya Prakash、Michael Marcelli、Koop Lammertsma
DOI:10.1021/j100315a005
日期:1988.2
Transition-metal methylene complexes. 14. Reactions of an electron-rich dimetallacyclopropane with protic acids: synthesis and x-ray crystal structures of novel rhodium-methyl and -methylidyne complexes
作者:Wolfgang A. Herrmann、Johann Plank、Doris Riedel、Manfred L. Ziegler、Klaus Weidenhammer、Ernst Guggolz、Barbara Balbach
DOI:10.1021/ja00391a014
日期:1981.1
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