Enzymatic resolution by CALB of organofluorine compounds under conventional condition and microwave irradiation

Total Synthesis of (+)-Raputindole A: An Iridium-Catalyzed Cyclization Approach

This work describes the total synthesis of raputindole A (1) through a convergent approach that features (1) an iridium-catalyzed cyclization to assemble the tricyclic core of the northern part, (2) enzymatic resolution to secure the preparation of an enantiomerically pure benzylic alcohol intermediate, and (3) the installation of the isobutenyl side chain via methallylation of the corresponding benzylic carbocation and coupling of the northern and southern parts via the Heck reaction. (+)-Raputindole A (1) was prepared in 10 steps (longest linear sequence) in 3.3% overall yield.

Synthesis of macromolecular systems via lipase catalyzed biocatalytic reactions: applications and future perspectives

This review highlights the application of lipases in the synthesis of pharmaceutically important small molecules and polymers for diverse applications.

Biocatalysis and biotransformation in Brazil: An overview

This review presents the recent research in biocatalysis and biotransformation in Brazil. Several substrates were biotransformed by fungi, bacteria and plants. Biocatalytic deracemization of secondary alcohols, oxidation of sulfides, sp(3) CH hydroxylation and epoxidation of alkenes were described. Chemo-enzymatic resolution of racemic alcohols and amines were carried out with lipases using several substrates containing heteroatoms such as silicon, boron, selenium and tellurium. Biotransformation of nitriles by marine fungi, hydrolysis of epoxides by microorganisms of Brazilian origin and biooxidation of natural products were described. Enzymatic reactions under microwave irradiation, continuous flow, and enzymatic assays using fluorescent probes were reported.