Jianxia(Jessie) Zheng - Academia.edu (original) (raw)
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CSIC (Consejo Superior de Investigaciones Científicas-Spanish National Research Council)
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Papers by Jianxia(Jessie) Zheng
ChemCatChem, 2014
ABSTRACT [(IMes)Fe(CO)4] [IMes=1,3‐bis(2,4,6‐trimethylphenyl) imidazol‐2‐ylidene] complex was fou... more ABSTRACT [(IMes)Fe(CO)4] [IMes=1,3‐bis(2,4,6‐trimethylphenyl) imidazol‐2‐ylidene] complex was found to be an efficient pre‐catalyst for the hydroboration of functional alkenes in the presence of pinacolborane at room temperature. Notably, UV irradiation (350 nm) is important to promote this catalytic transformation. Interestingly, high chemo‐ and regioselectivities were observed as only anti‐Markovnikov boronate derivatives were obtained and various functional groups can be tolerated. If you tolerate this then your catalyst will be next: [(IMes)Fe(CO)4] complex was found to be an efficient pre‐catalyst for the hydroboration of functional alkenes in the presence of pinacolborane at room temperature. Notably, UV irradiation is important to promote this catalytic transformation. Interestingly, high chemo‐ and regioselectivities were observed as only anti‐Markovnikov boronate derivatives were obtained and various functional groups can be tolerated.
Angewandte Chemie International Edition
On a direct course to the aldehyde: Hydrosilylation catalyzed by a well-defined N-heterocyclic-ca... more On a direct course to the aldehyde: Hydrosilylation catalyzed by a well-defined N-heterocyclic-carbene-iron complex under UV irradiation enabled the selective reduction of esters to aldehydes (see scheme; Bn=benzyl, Mes=mesityl). The low catalyst loading and very mild reaction conditions make this chemoselective transformation a promising alternative to the reduction of esters with diisobutylaluminum hydride.
Chemical Communications
The direct reduction of carboxylic acids to disilylacetals was achieved through a manganese catal... more The direct reduction of carboxylic acids to disilylacetals was achieved through a manganese catalyzed hydrosilylation reaction in the presence of triethylsilane under mild conditions, at r.t. and under UV irradiation (350 nm). The aldehydes were obtained in good to excellent yields after acidic hydrolysis.
ChemCatChem, 2014
ABSTRACT [(IMes)Fe(CO)4] [IMes=1,3‐bis(2,4,6‐trimethylphenyl) imidazol‐2‐ylidene] complex was fou... more ABSTRACT [(IMes)Fe(CO)4] [IMes=1,3‐bis(2,4,6‐trimethylphenyl) imidazol‐2‐ylidene] complex was found to be an efficient pre‐catalyst for the hydroboration of functional alkenes in the presence of pinacolborane at room temperature. Notably, UV irradiation (350 nm) is important to promote this catalytic transformation. Interestingly, high chemo‐ and regioselectivities were observed as only anti‐Markovnikov boronate derivatives were obtained and various functional groups can be tolerated. If you tolerate this then your catalyst will be next: [(IMes)Fe(CO)4] complex was found to be an efficient pre‐catalyst for the hydroboration of functional alkenes in the presence of pinacolborane at room temperature. Notably, UV irradiation is important to promote this catalytic transformation. Interestingly, high chemo‐ and regioselectivities were observed as only anti‐Markovnikov boronate derivatives were obtained and various functional groups can be tolerated.
Angewandte Chemie International Edition
On a direct course to the aldehyde: Hydrosilylation catalyzed by a well-defined N-heterocyclic-ca... more On a direct course to the aldehyde: Hydrosilylation catalyzed by a well-defined N-heterocyclic-carbene-iron complex under UV irradiation enabled the selective reduction of esters to aldehydes (see scheme; Bn=benzyl, Mes=mesityl). The low catalyst loading and very mild reaction conditions make this chemoselective transformation a promising alternative to the reduction of esters with diisobutylaluminum hydride.
Chemical Communications
The direct reduction of carboxylic acids to disilylacetals was achieved through a manganese catal... more The direct reduction of carboxylic acids to disilylacetals was achieved through a manganese catalyzed hydrosilylation reaction in the presence of triethylsilane under mild conditions, at r.t. and under UV irradiation (350 nm). The aldehydes were obtained in good to excellent yields after acidic hydrolysis.