1567-89-1Relevant articles and documents
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Faizutdinova et al.
, (1967)
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Anderson,N.H.,Norman,R.O.C.
, p. 993 - 1003 (1971)
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Braddock,Willard
, p. 313 (1953)
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Ohno,A. et al.
, p. 3718 - 3722 (1975)
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Tokushige,Cook
, p. 267 (1959)
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Larkin,J.M.,Kreuz,K.L.
, p. 3079 - 3085 (1972)
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A re-examination of supra-molecular aggregation in two polymorphs of acetone 2,4-dinitro-phenyl-hydrazone
Wardell, James L.,Howie, R. Alan,Low, John N.,Glidewell, Christopher
, p. o231-o233 (2007)
The structure of the triclinic polymorph of acetone 2,4- dinitrophenylhydrazone, C9H10N4O4, has been redetermined from diffraction data collected at 120 (2) K; the mol-ecules are linked by C - H...O hydrogen bonds into centrosymmetric R 2 2(10)
Aerobic oxidation of formaldehyde catalyzed by polyvanadotungstates
Guo, Weiwei,Luo, Zhen,Lv, Hongjin,Hill, Craig L.
, p. 1154 - 1161 (2014)
Three tetra-n-butylammonium (TBA) salts of polyvanadotungstates, [n-Bu 4N]6[PW9V3O40] (PW 9V3), [n-Bu4N]5H2PW 8V4O40 (PW8V4), and [n-Bu4N]4H5PW6V6O 40·20H2O (PW6V6), have been synthesized and shown to be effective catalysts for the aerobic oxidation of formaldehyde to formic acid under ambient conditions. These complexes, characterized by elemental analysis, Fourier transform infrared spectroscopy, UV-vis spectroscopy, and thermogravimetric analysis, exhibit a catalytic activity for this reaction comparable to those of other polyoxometalates. Importantly, they are more effective in the presence of water than the metal oxide-supported Pt and/or Au nanoparticles traditionally used as catalysts for formaldehyde oxidation in the gas phase. The polyvanadotungstate-catalyzed oxidation reactions are first-order in formaldehyde, parabolic-order (slow, fast, and slow again) in catalyst, and zero-order in O2. Under optimized conditions, a turnover number of ~57 has been obtained. These catalysts can be recycled and reused without a significant loss of catalytic activity.
Burgess Reagent Facilitated Alcohol Oxidations in DMSO
Sultane, Prakash R.,Bielawski, Christopher W.
, p. 1046 - 1052 (2018/06/18)
The Burgess reagent ([methoxycarbonylsulfamoyl]triethylammonium hydroxide) has historically found utility as a dehydrating agent. Herein we show that, in the presence of dimethyl sulfoxide, the Burgess reagent efficiently and rapidly facilitates the oxidation of a broad range of primary and secondary alcohols to their corresponding aldehydes and ketones in excellent yields and under mild conditions, and can be combined with other transformations (e.g., Wittig olefinations). A mechanism similar to those described for the Pfitzner-Moffatt and Swern oxidations is proposed.