Details

Autor(en) / Beteiligte

• Noikham, Medena
• Yotphan, Sirilata

Titel

Copper‐Catalyzed Regioselective Direct C–H Thiolation and Thiocyanation of Uracils

Ist Teil von

• European journal of organic chemistry, 2019-04, Vol.2019 (16), p.2759-2766

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A novel copper‐catalyzed direct C–H thiolation and thiocyanation of uracils using disulfides and thiocyanate salts respectively as coupling partners are described. These reactions enable the C–H bond cleavage and C–S bond formation to proceed efficiently under relatively mild conditions, providing useful methods for a preparation of a series of thio‐substituted at the C5 position of uracil derivatives. These protocols exhibit several merits including simple experimental procedures, readily accessible substrates and reagents, broad scopes, high yields, and excellent regioselectivity. Preliminary mechanistic studies revealed that a radical pathway is likely to be involved. The copper‐catalyzed direct C–H thiolation and thiocyanation of uracils using disulfides and thiocyanate salts respectively as coupling partners have been successfully developed. These protocols enable the C–H bond cleavage and C–S bond formation to proceed efficiently, providing useful methods to access of a diverse array of thio‐substituted at the 5 position of uracil derivatives in good to excellent yields.