35333-26-7Relevant articles and documents
Method for synthesizing 4-(4-fluorobenzoyl) butyric acid and analogues thereof in continuous flow microreactor
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Paragraph 0059-0064, (2021/05/12)
The invention relates to a method for synthesizing 4-(4-fluorobenzoyl) butyric acid and analogues thereof in a continuous flow microreactor, which comprises the following steps: (1) uniformly mixing a compound 1 and a compound 2 to obtain a homogeneous phase solution A; (2) uniformly mixing aluminum trichloride, a compound 1 and an organic solvent to obtain a homogeneous phase solution B; (3) diluting concentrated hydrochloric acid with water to prepare a solution C; and (4) transferring the homogeneous phase solution A and the homogeneous phase solution B into a first micro-reaction module for a Friedel-Crafts acylation reaction, after the reaction is finished, transferring the obtained reaction solution and the solution C into a second micro-reaction module for quenching reaction, and then performing liquid separation, washing and vacuum concentration to obtain a target compound 3; wherein the specific synthesis route is as follows. By adopting the method disclosed by the invention, the target product can be continuously and rapidly synthesized, aluminum trichloride is not needed for treatment, the reaction condition is mild, the reaction time is short, and the yield is high and reaches 90% or above.
Asymmetric hydrogenation reaction γ - or δ - ketonato compound (by machine translation)
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Paragraph 0048-0053, (2020/03/06)
The invention relates to the field, of organic chemistry, specifically γ - or δ - keto acid compound asymmetric hydrogenation reaction, reaction formula as follows : Wherein R is H,C. 1 - C6 An alkyl or halogen, is R 1 - 5 in number of substituents . wherein n is 1 or 2;Cat. is a chiral spiro pyrimidyl phosphine ligand iridium complex . and γ - or δ - keto acid compound is subjected to an internal esterification reaction to further prepare a lactone compound. (by machine translation)
Combined Photoredox/Enzymatic C?H Benzylic Hydroxylations
Betori, Rick C.,May, Catherine M.,Scheidt, Karl A.
supporting information, p. 16490 - 16494 (2019/11/03)
Chemical transformations that install heteroatoms into C?H bonds are of significant interest because they streamline the construction of value-added small molecules. Direct C?H oxyfunctionalization, or the one step conversion of a C?H bond to a C?O bond, could be a highly enabling transformation due to the prevalence of the resulting enantioenriched alcohols in pharmaceuticals and natural products,. Here we report a single-flask photoredox/enzymatic process for direct C?H hydroxylation that proceeds with broad reactivity, chemoselectivity and enantioselectivity. This unified strategy advances general photoredox and enzymatic catalysis synergy and enables chemoenzymatic processes for powerful and selective oxidative transformations.