40686-26-8

Upstream product

• 1189-71-5 isocyanate de chlorosulfonyle 
• 29119-37-7 α,N-diphenyl-α-(4-methyl phenyl) nitrone 
• 6833-18-7 4-methyl-N-phenylbenzamide 
• 62-53-3 aniline 
• 99-94-5 p-Toluic acid 
• 591-50-4 iodobenzene 
• 624-31-7 4-tolyl iodide 
• 874-60-2 4-methyl-benzoyl chloride 
• 122-39-4 diphenylamine 
• 101283-96-9 diphenyl-oxalamic acid ethyl ester 
• 83-01-2 diphenylcarbamic chloride 
• 108-88-3 toluene 

Relevant academic research and scientific papers

Room-Temperature Decarboxylative Couplings of α-Oxocarboxylates with Aryl Halides by Merging Photoredox with Palladium Catalysis

Enabled by merging iridium photoredox catalysis and palladium catalysis, α-oxocarboxylate salts can be decarboxylatively coupled with aryl halides to generate aromatic ketones and amides at room temperature. DFT calculations suggest that this reaction proceeds through a Pd0-PdII-PdIII pathway, in which the PdIII intermediate is responsible for reoxidizing IrII to complete the IrIII-IrIII-IrII photoredox cycle. Like a mergin': Enabled by merging iridium photoredox catalysis and palladium catalysis, palladium-catalyzed decarboxylative coupling of α-oxocarboxylates with aryl halides can proceed at room temperature. DFT calculations suggest that a Pd0-PdII-PdIII catalytic cycle is merged with an IrIII-IrIII-IrII photoredox cycle, in which PdIII is responsible for oxidizing IrII to complete the photoredox cycle.

A palladium-catalyzed carbonylation approach to acid chloride synthesis

We describe a new approach to acid chloride synthesis via the palladium-catalyzed carbonylation of aryl iodides. The combination of sterically encumbered phosphines (PtBu3) and CO coordination has been found to facilitate the rapid carbonylation of aryl iodides into acid chlorides via reductive elimination from (tBu3P)(CO) Pd(COAr)Cl. The formation of acid chlorides can also be exploited to perform traditional aminocarbonylation reactions under exceptionally mild conditions (ambient temperature and pressure), and with a range of weakly nucleophilic substrates.

A general and efficient CuBr2-catalyzed N-arylation of secondary acyclic amides

A general and efficient Cu(II)-catalyzed cross-coupling method is reported for the preparation of acyclic tertiary amides. Generally moderate to excellent yields and functional group tolerance were obtained with secondary acyclic amides and aryl halides as substrates in toluene. A general and efficient Cu(II)-catalyzed cross-coupling method is reported for the preparation of acyclic tertiary amides. Generally moderate to excellent yields and functional group tolerance were obtained with secondary acyclic amides and aryl halides as substrates in toluene. Copyright

Reactions of Carboxylic Acids with "Phosphonium Anhydrides"

General considerations are outlined for a reagent to extract oxygen from organic molecules by an equivalent of dehydration.Reagents, (R3P+)2O, 2OTf-, were created for the purpose and subjected to a preliminary study.They were found to convert carboxylic acids readily and rapidly to anhydrides, esters, amides, amidines, benzimidazoles, and cyclic aryl ketones in good yields.

REARRANGEMENT OF NITRONES TO AMIDES USING CHLOROSULFONYL ISOCYANATE

Reaction of chlorosulfonyl isocyanate (CSI) with nitrones 1a-n and 5a,b has been studied. α,α,N-Triaryl nitrones 1a-n react with CSI to form the N,N-diaryl arylamides 3a-n and 4i-n in good yields.In the case of α-H,α,N-diaryl nitrones 5a,b however, two compounds viz., the rearranged product 11a,b and the 1,4-dihydro tetrazines 10a,b are formed.The effect of substituents on the rearrangement has been studied.It is found that the nature of the substituents has got a profound effect on the rearrangement.We have also noted that the rearrangement is independent of the syn or anti configurations of the nitrones.