Enzyme Catalyzed Trans-Benzoin Condensation
نویسندگان
چکیده
منابع مشابه
Facile approach to preparing microporous organic polymers through benzoin condensation.
A series of microporous organic networks linked by α-hydroxyl ketone were synthesized based on benzoin self-condensation of multiformyl-containing building blocks. Fourier transform infrared and solid-state (13)C CP/MAS NMR spectroscopy were utilized to confirm the α-hydroxyl ketone linkage of the obtained polymers. The hollow microspheric morphology can be observed from scanning electron micro...
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BACKGROUND The oxidative transformation of benzoin to benzil has been accomplished by the use of a wide variety of reagents or catalysts and different reaction procedures. The conventional oxidizing agents yielded mainly benzaldehyde or/and benzoic acid and only a trace amount of benzil. The limits of practical utilization of these reagents involves the use of stoichiometric amounts of corrosiv...
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The design of a new class of triazolium ion precatalysts incorporating protic substituents is described. These materials promote the enantioselective benzoin condensation of a range of aromatic aldehydes (1-62% ee). Catalyst evaluation studies strongly support the involvement of hydrogen bond donation by the catalyst in the stereocentre-forming step of the catalytic cycle.
متن کاملTheoretical investigation on the chemoselective N-heterocyclic carbene-catalyzed cross-benzoin reactions.
A density functional theory study was performed to understand the detailed mechanisms of the cross-benzoin reactions catalyzed by N-heterocyclic carbene (NHC) species. Our theoretical study predicted that the first H-transfer operates with water in solution as a mediator, and the second H-transfer undergoes a concerted mechanism rather than a stepwise one. In addition, the chemoselectivity of t...
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PERSPECTIVES AND SUMMARY ................... ... ...................................................... 877 Classes of enzyme involving reactions at phosphorus...................................................... 878 COVALENT REACTION INTERMEDIATES, CRYPTIC AND OTHERWISE........................................................................................................ 879 Reactions of Pho...
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ژورنال
عنوان ژورنال: Journal of the Turkish Chemical Society, Section A: Chemistry
سال: 2018
ISSN: 2149-0120
DOI: 10.18596/jotcsa.414603