Novel enantiopure δ-thiolactones: synthesis, structural characterization, and reactivity studies

Area of Science:

• Organic Chemistry
• Stereochemistry
• Chemical Synthesis

Background:

• Fused thiazolidines exhibit acetalic N-C-S reversibility.
• Thioester chemistry is crucial in various synthetic applications.

Purpose of the Study:

• To synthesize new chiral δ-thiolactone derivatives.
• To investigate the N-C-S reversibility and aminolysis reactions of these compounds.
• To explore potential applications in bioactive compound synthesis and polymer chemistry.

Main Methods:

• Synthesis of chiral δ-thiolactone derivatives.
• Elucidation of stereochemistry using X-ray crystallography, NOESY spectroscopy, and DFT calculations.
• Study of aminolysis reactions with various alkyl amines.

Main Results:

• Successful preparation of a new series of chiral δ-thiolactone derivatives.
• Demonstration of acetalic N-C-S reversibility toward the thermodynamic product.
• Thioester aminolysis yields amido thiols in a single step.

Conclusions:

• The synthesized chiral δ-thiolactones are valuable building blocks.
• The observed N-C-S reversibility and aminolysis reaction are significant findings.
• This chemistry holds potential for dynamic combinatorial chemistry, bioactive compound synthesis, and polymer science.