Expanded Access to Fluoroformamidines via a Modular Synthetic Pathway

Area of Science:

• Organic Chemistry
• Medicinal Chemistry
• Fluorine Chemistry

Background:

• Fluoroformamidines are an underutilized functional group in drug discovery.
• Nitrogen and fluorine are highly desirable elements in medicinal chemistry.
• Existing synthetic routes for fluoroformamidines are limited.

Purpose of the Study:

• To develop a practical and modular synthesis for fluoroformamidines.
• To explore the utility of fluoroformamidines as synthetic intermediates.
• To highlight the efficiency of the new synthetic protocol.

Main Methods:

• Synthesis of fluoroformamidines via rearrangement of in situ-generated amidoximes.
• Reaction optimization for yield and time.
• Utilizing fluoroformamidines to synthesize ureas and carbamimidates.

Main Results:

• A high-yielding and rapid (60 s at room temperature) synthesis of fluoroformamidines was achieved.
• The protocol is modular, allowing for diverse fluoroformamidine synthesis.
• Fluoroformamidines were successfully used as intermediates for urea and carbamimidate synthesis.

Conclusions:

• The developed method provides an efficient and practical route to fluoroformamidines.
• Fluoroformamidines are versatile intermediates for synthesizing valuable nitrogen-containing compounds.
• This work encourages further exploration of fluoroformamidines in drug design and organic synthesis.