期刊
ORGANIC LETTERS
卷 25, 期 20, 页码 3670-3675出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.3c01056
关键词
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A stereocontrolled electrophilic amination approach was employed for the synthesis of α-aminoketone derivatives with less accessible α-tetrasubstituted stereocenters. Stereospecific α-deprotonation of ketimines followed by nucleophilic attack of azodicarboxylic derivatives afforded α-aminated products in high yields with excellent stereoselectivities.
A stereocontrolled electrophilicamination of alpha-branched N-tert-butanesulfinyl ketimines was developedto construct alpha-aminoketone derivatives containing less accessible alpha-tetrasubstituted stereocenters. Stereospecific alpha-deprotonationof ketimines with potassium tert-butoxide gave stereodefinedmetalloenamine intermediates that could act as nucleophiles to attackazodicarboxylic derivatives, affording alpha-aminated products inhigh yields with excellent stereoselectivities.
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