Conversion of Acids to S-Alkyl Dithiocarbamates by Decarboxylative Sulfuration Using Visible-Light Photocatalysis

Area of Science:

• Organic Chemistry
• Photocatalysis
• Sulfur Chemistry

Background:

• S-alkyl dithiocarbamates are vital sulfur-containing compounds with broad applications.
• Existing synthesis methods often lack efficiency, mild conditions, or structural diversity.

Purpose of the Study:

• To develop an efficient and versatile synthesis for S-alkyl dithiocarbamates.
• To utilize visible-light photocatalysis for mild and accessible synthetic routes.

Main Methods:

• Visible-light photocatalysis employing alkyl carboxylic acids and disulfide tetraalkylthiuram.
• Utilizing readily available and structurally diverse starting materials.
• Employing mild reaction conditions and water as a solvent.

Main Results:

• Efficient synthesis of various S-alkyl dithiocarbamates achieved.
• Broad substrate scope including primary, secondary, tertiary, and amino acids demonstrated.
• Good functional group tolerance and potential for gram-scale synthesis confirmed.

Conclusions:

• The developed protocol offers an efficient, mild, and versatile method for S-alkyl dithiocarbamate synthesis.
• This photocatalytic approach facilitates the facile production of bioactive molecules.
• The method shows promise for sustainable and scalable chemical synthesis.