The reaction of tert-butyl peroxybenzoate (TBPB) and ammonia/amines provides the corresponding primary, secondary, and tertiary amides under catalyst- and solvent-free conditions in excellent yields. TBPB is an efficient and highly chemoselective benzoylating reagent for aliphatic amines in the ...
The Du Bois group at Stanford University has achieved significant advancements in Rh-catalyzed C–H amination through oxidative cyclization of carbamate, sulfamate, sulfamide, urea, and guanidine substrates. This methodology produces 1,2- and 1,3-heteroatom motifs masked within 5- and ...
Chiral rhodium-bis(oxazolinyl)phenyl complexes catalyze the conjugate hydrosilylation of 3,3-diarylacrylate derivatives to prepare optically active 3,3-diarylpropanoate derivatives in high yields and high enantioselectivities.
The amide bond is one of the most commonly used chemical bonds in organic synthesis. The methods used to form this important functional group are often superchemically stoichiometric, leading to significant waste in the process. These factors led the American Chemical Society Green Chemistry ...
NHC-trihydroboranes are white solids that are stable to air, water, and even chromatography. However, 1,3-dimethylimidazol-2-ylidene borane is a surprisingly good hydride donor that is comparable to anionic reagents such as NaCNBH3. The reagent can be used for reductive amination procedures and ...
Professor Karl Anker Jørgensen and his research team have synthesized (R)- and (S)-α,α-bis[3,5-bis(trifluoromethyl)phenyl]-2-pyrrolidinemethanol trimethylsilyl ether compounds, which excel as chiral organocatalysts for the direct and asymmetric α-functionalization process of aldehydes.
Solid-phase peptide synthesis (SPPS) is a revolutionary biochemical technique that has become the primary method for synthesizing peptides and proteins since its introduction in the 1960s. Robert Bruce Merrifield first proposed the concept of SPPS in 1963, and this groundbreaking work not only ...
The Stanford-based Du Bois group has refined the catalytic prowess of Rh in oxidative C-H activation reactions, targeting sulfamate, sulfamide, carbamate, urea, and guanidine substrates. This enhancement stems from their ingenious substitution of tetramethylated m-benzenediproprionic acid 1 ...
