16215-47-7Relevant academic research and scientific papers
Copper(ii)-catalyzed protoboration of allenes in aqueous media and open air
Nekvinda, Jan,Santos, Webster L.,Snead, Russell F.
supporting information, p. 14925 - 14931 (2021/09/04)
A method has been developed for the facile Cu(ii)-catalyzed protoboration of monosubstituted allenes in aqueous media under atmospheric conditions. The reaction occurs site selectively, favoring internal alkene protoboration to afford 1,1-disubstituted vinylboronic acid derivatives (up to 93?:?7) with modest to good yields. The method has been applied to a variety of phenylallene derivatives as well as alkyl-substituted allenes. This journal is
Direct α-Acylation of Alkenes via N-Heterocyclic Carbene, Sulfinate, and Photoredox Cooperative Triple Catalysis
Liu, Kun,Studer, Armido
supporting information, p. 4903 - 4909 (2021/05/04)
N-Heterocyclic carbene (NHC) catalysis has emerged as a versatile tool in modern synthetic chemistry. Further increasing the complexity, several processes have been introduced that proceed via dual catalysis, where the NHC organocatalyst operates in concert with a second catalytic moiety, significantly enlarging the reaction scope. In biological transformations, multiple catalysis is generally used to access complex natural products. Guided by that strategy, triple catalysis has been studied recently, where three different catalytic modes are merged in a single process. In this Communication, direct α-C-H acylation of various alkenes with aroyl fluorides using NHC, sulfinate, and photoredox cooperative triple catalysis is reported. The method allows the preparation of α-substituted vinyl ketones in moderate to high yields with excellent functional group tolerance. Mechanistic studies reveal that these cascades proceed through a sequential radical addition/coupling/elimination process. In contrast to known triple catalysis processes that operate via two sets of interwoven catalysis cycles, in the introduced process, all three cycles are interwoven.
Expanding the regioselective enzymatic repertoire: Oxidative mono-cleavage of dialkenes catalyzed by Trametes hirsuta
Paul, Caroline E.,Rajagopalan, Aashrita,Lavandera, Ivan,Gotor-Fernandez, Vicente,Kroutil, Wolfgang,Gotor, Vicente
supporting information; experimental part, p. 3303 - 3305 (2012/04/23)
The first report of a biocatalytic regioselective oxidative mono-cleavage of dialkenes was successfully achieved employing a cell-free enzyme preparation from Trametes hirsuta at the expense of molecular oxygen. Selected reactions were performed on a preparative scale affording high to excellent conversions and chemoselectivities. The Royal Society of Chemistry 2012.
Method for production of allyloxystyrene compounds
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, (2008/06/13)
Allylic styrene ether compounds of the formula: where R1is an optionally substituted allylic or propargyl hydrocarbon group, and R2, R3, and R4are independently H, C1-6hydrocarbon or C1-6hy
Method for production of allyloxystyrene compounds
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, (2008/06/13)
Allylic styrene ether compounds of the formula: STR1 where R1 is an optionally substituted allylic or propargyl hydrocarbon group, and R2, R3, and R4 are independently H, C1-6 hydrocarbon or C1-6
Styryloxy resins and compositions thereof
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, (2008/06/13)
Polyfunctional cationically polymerizable styryloxy compound of the formula STR1 where R1 and R2 are H, or one of R1 and R2 are H and the other is methyl; R3 and R4 are H, lower alkyl, or a
