847781-45-7

Upstream product

• 456-64-4 phenyl trifluoromethanesulfonamide 
• 163222-33-1 ezetemibe 
• 37595-74-7 N,N-phenylbistrifluoromethane-sulfonimide 

Downstream Products

• 851860-30-5 (1S)-1-(4-fluorophenyl)-3-[(3R,4S)-1-(4-fluorophenyl)-2-oxo-4-(4-{[(trifluoromethyl)sulfonyl]oxy}-phenyl)azetidin-3-yl]propyl acetate 
• 852204-12-7 (1S)-1-(4-fluorophenyl)-3-[(2S,3R)-1-(4-fluorophenyl)-2-(3'-hydroxybiphenyl-4-yl)-4-oxoazetidin-3-yl]propyl acetate 
• 1227828-38-7 FC₆H₄CH(OH)CH₂CH₂C₃H₂NO(C₆H₄F)(C₆H₄SnBu₃) 
• 1004520-48-2 (3R,4S)-1-(4-fluorophenyl)-3-((S)-3-(4-fluorophenyl)-3-hydroxypropyl)-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)azetidin-2-one 

Relevant academic research and scientific papers

Catalytic Access to Functionalized Allylic gem-Difluorides via Fluorinative Meyer–Schuster-Like Rearrangement

An unprecedented approach for efficient synthesis of functionalized allylic gem-difluorides via catalytic fluorinative Meyer–Schuster-like rearrangement is disclosed. This transformation proceeded with readily accessible propargylic fluorides, and low-cost B–F reagents and electrophilic reagents by sulfide catalysis. A series of iodinated, brominated, and trifluoromethylthiolated allylic gem-difluorides that were difficult to access by other methods were facilely produced with a wide range of functional groups. Importantly, the obtained iodinated products could be incorporated into different drugs and natural products, and could be expediently converted into many other valuable gem-difluoroalkyl molecules as well. Mechanistic studies revealed that this reaction went through a regioselective fluorination of alkynes followed by a formal 1,3-fluorine migration under the assistance of the B–F reagents to give the desired products.

Rhodium catalyzed C-C bond cleavage/coupling of 2-(azetidin-3-ylidene)acetates and analogs

The C-C bond cleavage/coupling of 2-(azetidin-3-ylidene)acetates with aryl boronic acids catalyzed by a rhodium complex was studied with a "conjugate addition/β-C cleavage/protonation" strategy.

FLUORINATION OF ORGANIC COMPOUNDS

Methods for fluorinating organic compounds are described herein.

Silver-catalyzed late-stage fluorination

Carbon-fluorine bond formation by transition metal catalysis is difficult, and only a few methods for the synthesis of aryl fluorides have been developed. All reported transition-metal-catalyzed fluorination reactions for the synthesis of functionalized arenes are based on palladium. Here we present silver catalysis for carbon-fluorine bond formation. Our report is the first example of the use of the transition metal silver to form carbon-heteroatom bonds by cross-coupling catalysis. The functional group tolerance and substrate scope presented here have not been demonstrated for any other fluorination reaction to date.

4-BIARYLYL-1-PHENYLAZETIDIN-2-ONES

4-Biarylyl-1-phenylazetidin-2-ones useful for the treatment of hypercholesterolemia are disclosed.

4-BIARYLYL-1-PHENYLAZETIDIN-2-ONES

4-Biarylyl-1-phenylazetidin-2-ones useful for the treatment of hypercholesterolemia are disclosed. The compounds are of a general formula (I) in which formula (II) represents an aryl or heteroaryl residue, Ar represents an aryl residue; U is a two to six atom chain; and the R’s represent substituents.