Wappes, Ethan A.; Vanitcha, Avassaya; Nagib, David A. published the artcile< β C-H di-halogenation via iterative hydrogen atom transfer>, Name: 2,2,5,5-Tetramethyldihydrofuran-3(2H)-one, the main research area is geminal dihalide regioselective preparation; imidate preparation photochem tandem dihalogenation hydrogen transfer.
A radical relay strategy for mono- and di-halogenation (iodination, bromination, and chlorination) of sp3 C-H bonds was developed. This is the first example of β C-H di-halogenation is achieved through sequential C-H abstraction by iterative, hydrogen atom transfer (HAT). A double C-H functionalization was enabled by in-situ generated imidate radicals, which facilitate selective N to C radical translocation and tunable C-X termination. The versatile, geminal di-iodide products were further elaborated to β ketones and vinyl iodides. Mechanistic experiments explained the unique di-functionalization selectivity of this iterative HAT pathway, wherein the second C-H iodination is twice as fast as the first.
Chemical Science published new progress about Aliphatic alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 5455-94-7 belongs to class tetrahydrofurans, and the molecular formula is C8H14O2, Name: 2,2,5,5-Tetramethyldihydrofuran-3(2H)-one.
Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem