1589-49-7Relevant articles and documents
Searching for the Ionized Alkene/Alkanol Complexes +./HOCH3> and +./HOCH2CH3>
Cao, J. R.,George, M.,Holmes, John L.
, p. 481 - 485 (1991)
Experiments on a variety of isomeric +. and +. ions have failed to produce direct evidence for the involvement of the complex ions +./HOCH3> and +./HOC2H5>.For the isomers studied, the rearrangements prior to their dissociation of lowest energy requirement (loss of H2O and C2H5., respectively) are proposed to involve distonic and ylid ions.
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Leggetter,B.E. et al.
, p. 2113 - 2118 (1964)
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A HPPO by-product recycling synthetic 1, 3 - propanediol (by machine translation)
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Paragraph 0036-0041, (2019/07/04)
The invention belongs to the technical field of organic chemical industry, relates to a HPPO by-product recycling synthetic 1, 3 - propanediol, more specifically, relates to a propylene HPPO process with methanol the reaction product of propylene glycol monomethyl ether as the raw material, and sequentially passes through the dewatering, borohydrite oxidation, hydrolysis of the three-step reaction synthesizes the high value added 1, 3 - propylene glycol, 1, 3 - propylene glycol total yield of 80% or more, purity 99.5% or more, the invention has the simple process route, rationalization of resources use, 1, 3 - propylene glycol yield and purity and the like. (by machine translation)
CONTROLLED RELEASE PREPARATION
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Paragraph 0529; 0530, (2016/06/06)
A controlled release preparation wherein the release of active ingredient is controlled, which releases an active ingredient for an extended period of time by staying or slowly migrating in the gastrointestinal tract, is provided by means such as capsulating a tablet, granule or fine granule wherein the release of active ingredient is controlled and a gel-forming polymer. Said tablet, granule or fine granule has a release-controlled coating-layer formed on a core particle containing an active ingredient.