110-03-2Relevant articles and documents
Jardine et al.
, p. 260 (1969)
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Johnson
, p. 2282 (1941)
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Photocatalytic Dehydrgenation of Aliphatic Alcohols by Aqueos Suspensions of Platinized Titanium Dioxide
Nishimoto, Sei-Ichi,Ohtani, Bunsho,Kagiya, Tsutomu
, p. 2467 - 2474 (1985)
Photoirradiation (λex > 300 nm) of Ar-purged aqueos propan-2-ol solution gave hydrogen and acetone in the presence of platinum- and/or ruthenium dioxide-loaded TiO2.The photocatalytic activity of anatase TiO2 depended significantly on the amount of metal or metal oxide present; the effect on the activity increased in the order platinum black >> platinum powder > ruthenium dioxide.The photocatalytic activity of rutile TiO2 was negligible even when loaded with platinum black.The effective wavelengths for the photocatalytic dehydrogenation of propan-2-ol were below ca. 390 nm, in agreement with the u.v. absorption spectrum of anatase TiO2.In a similar way primary, secondary and tertiary aliphatic alcohols underwent photocatalytic oxidation, accompanied by hydrogen liberation, by platinized TiO2.The primary and secondary alcohols gave the corresponding carbonyl derivatives, while 2-methylpropan-2-ol and acetone gave dimeric products accompanied by stoichiometric hydrogen evolution.The initial rate of dehydrogenation in these photocatalytic systems was in proportion to the rate constants of hydrogen abstraction by hydroxyl radical in the homogeneous systems.
Method for Preparing Crosslinker Compound
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, (2021/01/29)
The present disclosure relates to a method for preparing a crosslinker compound in which a crosslinker compound capable of using for the production of a super absorbent polymer can be obtained in a higher yield by a simple manner. The crosslinker compound obtained by the above method can be used as a thermally decomposable crosslinker in the process of producing a super absorbent polymer.
EXPANSION OF RENEWABLE STEM CELL POPULATIONS
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Paragraph 0512, (2016/05/02)
Ex vivo and in vivo methods of expansion of renewable stem cells, expanded populations of renewable stem cells and their uses.
Direct synthesis of 1,4-diols from alkenes by iron-catalyzed aerobic hydration and C-H hydroxylation
Hashimoto, Takuma,Hirose, Daisuke,Taniguchi, Tsuyoshi
supporting information, p. 2730 - 2734 (2014/03/21)
Various 1,4-diols are easily accessible from alkenes through iron-catalyzed aerobic hydration. The reaction system consists of a user-friendly iron phthalocyanine complex, sodium borohydride, and molecular oxygen. Furthermore, the effect of additional ligands on the iron complex was examined for a model reaction. The second hydroxy group is installed by direct C(sp3)-H oxygenation, which is based on a [1,5] hydrogen shift process of a transient alkoxy radical that is formed by formal hydration of the olefin. One more hydroxy group: A method for the synthesis of 1,4-diols from simple alkenes has been developed. This unusual transformation entails an iron-catalyzed aerobic hydration and is achieved with convenient reagents, such as molecular oxygen. The formation of an intermediary alkoxy radical, which undergoes a [1,5] hydrogen shift, is likely to be essential for C(sp3)-H hydroxylation. Pc=phthalocyanine.