Abstract
A visible-light-enabled catalytic formylation of fluoroalkyl imines is developed. With readily accessible starting materials and organocatalysts, this method provides a general approach to masked fluoroalkyl amino aldehydes. A synergistic catalytic effect between the photosensitizer and the H atom transfer agent was proven pivotal to this transformation. After removing the mask, free aldehydes can be obtained and further converted to various β-fluoroalkyl β-amino alcohols, which are attractive building blocks in the synthesis of bioactive and pharmaceutical compounds.
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