2938-98-9Relevant articles and documents
Zylber et al.
, p. 387 (1973)
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Cinquini,M.,Cozzi,F.,Sannicolo,F.
, p. 4363 (1988)
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Hydroformylation reaction ligand, hydroformylation catalyst and diol preparation method
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Paragraph 0077-0078, (2021/06/22)
The invention discloses a hydroformylation reaction ligand, a hydroformylation catalyst and a diol preparation method According to the invention, the structural formula of the hydroformylation reaction ligand is shown in the specification, wherein R1 and R2 are mutually independent one of H, aryl or substituted aryl, thienyl, pyrrolyl, thiazolyl, imidazolyl and pyridyl; the ligand disclosed by the invention is high in catalytic activity and good in metal active center stability, by-products of aldehyde in a conventional hydroformylation reaction can be reduced, and linear diol with a high normal/isomer ratio can be obtained by a one-step method; and the method has the advantages of simple and convenient process, low cost and energy consumption, good production safety, high product quality and the like, and is particularly suitable for large-scale industrial production.
METHOD FOR PRODUCING ALCOHOL
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Paragraph 0101-0110, (2020/11/26)
PROBLEM TO BE SOLVED: To provide a method for producing selectively alcohol from carboxylic acid under mild conditions. SOLUTION: In the presence of a catalyst with M1 and M2 as metal species supported on a support, a substrate is reduced to produce a corresponding alcohol. (M1 is Rh, Pt, Ru, Ir, or Pd; M2 is Sn, V, Mo, W, or Re; the support is ZrO2, hydroxyapatite, Nb2O5, fluoroapatite, or hydrotalcite; the substrate is the formula 1a, 1b, or 1c). SELECTED DRAWING: None COPYRIGHT: (C)2020,JPO&INPIT
(Meth) acrylic ester and manufacturing method thereof (by machine translation)
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Paragraph 0058, (2019/12/04)
(Meth) acrylic acid ester of [be] hydrophobic properties. (1) (Meth) acrylic ester represented by the formula [a]. R1 Is H or methyl; R3 Alkyl, cycloalkyl, aryl or aralkyl; R21 , R22 , R23 Each independently is H, alkyl or cycloalkyl is not one of at least 2 H; Z1 The divalent chain hydrocarbon substituted of unsubstituted C1 a-20/2, 2 // hetero-substituted of unsubstituted C1 a-20 free of divalent cyclic hydrocarbon or a single bond; Z2 The divalent chain hydrocarbon of C1 c 12 2, Z3 The (R21 R22 R23 ) Coupled with a free cyclic hydrocarbon containing heteroatoms C C - C3 d 10/forming atomic group; n is an integer of 0 - 3; m is an integer of 1 - 18[Drawing] no (by machine translation)