• 专利标题:   Preparing loaded palladium catalyst, comprises dispersing (1H-benzotriazol-1-yl)acetic acid, sodium acetate, and palladium source in solvent to react, cooling, performing solid-liquid separation, concentrating, drying, and post-processing.
  • 专利号:   CN112264105-A, CN112264105-B
  • 发明人:   WANG D, LUO L, CAO F, NI C
  • 专利权人:   UNIV JIANGNAN
  • 国际专利分类:   B01J031/22, C07C037/20, C07C039/16, C07C045/51, C07C049/796, C07C049/813
  • 专利详细信息:   CN112264105-A 26 Jan 2021 B01J-031/22 202115 Pages: 10 Chinese
  • 申请详细信息:   CN112264105-A CN11284556 17 Nov 2020
  • 优先权号:   CN11284556

▎ 摘  要

NOVELTY - Preparing loaded palladium catalyst i.e. triazol-palladium-graphene oxide (I), comprises (i) dispersing (1H-benzotriazol-1-yl)acetic acid, sodium acetate, and palladium source (II) in solvent, and reacting at 20-80 degrees C, completing the reaction, cooling, performing solid-liquid separation, collecting clear liquid, concentrating and drying to obtain palladium catalyst precursor (III), and (ii) dispersing palladium catalyst precursor and graphene in organic solvent, and reacting at 140-160 degrees C, completing the reaction, cooling, performing solid-liquid separation, and collecting solid to obtain loaded palladium catalyst. USE - (I) is useful as catalyst in preparing substituted ketone compounds; and in catalytic synthesis of bisphenol F (all claimed). ADVANTAGE - (I): has excellent catalytic activity for rearrangement reaction of propargyl alcohol compounds under mild conditions, more efficient catalytic performance; overcomes characteristics of other precious metal catalysts that are difficult to separate and cannot reused; and is environmentally friendly. DETAILED DESCRIPTION - Preparing loaded palladium catalyst i.e. triazol-palladium-graphene oxide of formula (TriaPdX-GO) (I), comprises (i) dispersing (1H-benzotriazol-1-yl)acetic acid, sodium acetate, and palladium source (PdX2) (II) in solvent, and reacting at 20-80 degrees C, completing the reaction, cooling, performing solid-liquid separation, collecting clear liquid, concentrating and drying to obtain palladium catalyst precursor (TriaPdX) (III), and (ii) dispersing palladium catalyst precursor and graphene in organic solvent, and reacting at 140-160 degrees C, completing the reaction, cooling, performing solid-liquid separation, and collecting solid to obtain loaded palladium catalyst.X = Cl, Br, I or OAc. INDEPENDENT CLAIMS are also included for: (1) loaded palladium catalyst (I) prepared by above method; and (2) use of loaded palladium catalyst as catalyst in preparing substituted ketone compounds of formula (VI), comprising reacting prop-2-yn-1-ol compounds of formula (IV) and alcohol compounds of formula (R3-OH) (V) in presence of catalyst to obtain (VI). R11-R2 = H, 1-8C alkyl, alkoxy, halo, halogenated alkyl or aryl; and R3 = 1-8C alkyl, aryl substituted 1-8C alkyl or aryl.