LAUSR

Catalytic Enantioselective Synthesis of β-Allenyl Boronic Esters by Conjunctive Cross-Coupling with Propargylic Carbonates.

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0 Published in 2019 at "ACS catalysis"

DOI: 10.1021/acscatal.9b04453

Abstract: Enantioselective conjunctive cross-coupling with propargylic carbonates affords (β-boryl allenes as the reaction product. The reaction is found to proceed through the intermediacy of dimethoxyboronate complexes that are generated in situ by a strain-induced ligand exchange… read more here.

Keywords: conjunctive cross; catalytic enantioselective; propargylic carbonates; coupling propargylic ... See more keywords

Tri(o-tolyl)phosphine for highly efficient Suzuki coupling of propargylic carbonates with boronic acids.

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0 Published in 2018 at "Chemical communications"

DOI: 10.1039/c8cc04186e

Abstract: A highly efficient catalytic system consisting of Pd2(dba)3·CHCl3 and tri(o-tolyl)phosphine has been identified for the coupling of propargylic carbonates with different types of organo boronic acids at room temperature. Excellent central-to-axial chirality transfer was also… read more here.

Keywords: boronic acids; propargylic carbonates; coupling propargylic; tri tolyl ... See more keywords

Site-selective C–H activation and regiospecific annulation using propargylic carbonates† †Electronic supplementary information (ESI) available. CCDC 1866187. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c9sc01703h

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0 Published in 2019 at "Chemical Science"

DOI: 10.1039/c9sc01703h

Abstract: Herein we describe an unprecedented RuII-catalyzed site-selective and regiospecific annulation of benzoic acids with propargylic carbonates. The weakly coordinating carboxylic acid moiety outperformed other typically used directing groups in C–H activation, including ketone, nitrile, sulfonamide,… read more here.

Keywords: site selective; regiospecific annulation; esi; propargylic carbonates ... See more keywords

Photoredox/palladium co-catalyzed propargylic benzylation with internal propargylic carbonates.

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0 Published in 2020 at "Chemical communications"

DOI: 10.1039/d0cc04986g

Abstract: Herein, a highly regioselective propargylic benzylation with propargylic carbonates and benzyl 1,4-dihydropyridine derivatives was developed via a photoredox/palladium dual-catalyzed process, which represents a novel catalytic model for non-terminal propargylic functionalization. The reaction showed excellent regioselectivity… read more here.

Keywords: propargylic benzylation; photoredox palladium; propargylic carbonates;