54985-63-6

Upstream product

• 1643-19-2 tetrabutylammomium bromide 
• 100-46-9 benzylamine 
• 74-88-4 methyl iodide 
• 75-15-0 carbon disulfide 

Downstream Products

• 55012-66-3 N-Benzylidenamin 
• 342896-10-0 N-(Benzyl)imidodithiokohlensaeure-S-methyl-S'-(trimethylsilyl)-methylester 
• 76697-96-6 N-<(Phenyl)(trimethylsilyl)methyl>imidodithiokohlensaeure-S,S'-dimethylester 
• 54985-69-2 N-Benzyliden-1,1-bis(methylthio)-2-phenylethylamin 
• 54985-66-9 N-(1,2-Diphenylethyl)imidodithiokohlensaeure-S,S'-dimethylester 
• 54985-70-5 N-Benzyliden-1,1-bis(methylthio)-1-propylamin 
• 54985-67-0 N-(1-Phenylpropyl)imidodithiokohlensaeure-S,S'-dimethylester 
• 119492-92-1 1-benzyl-4,4-bis-methylsulfanyl-3-phenoxyazetidin-2-one 
• 76697-97-7 (+/-)-N-α-methylbenzyl carbonimidodithioic acid dimethyl ester 
• 76697-98-8 N-Benzyliden-1,1-bis(methylthio)ethylamin 
• 1294450-07-9 1-(benzyl)-3-acetoxy-4,4-bis(methylthio)azetidin-2-one 
• 119493-02-6 N-Benzyl-2-phenoxy-malonamic acid methyl ester 
• 119492-98-7 1-Benzyl-3-phenoxy-azetidin-2-one 
• 142389-05-7 1-Benzyl-3-phenoxy-azetidine-2,4-dione 

Relevant academic research and scientific papers

4,4-Bis(methylthio)azetidin-2-ones as synthons of 1,2- and 1,3-dicarbonyl systems

The importance of β-lactams as synthetic building blocks has been widely recognized in organic synthesis due to possible ring cleavage at any of the four single bonds of the β-lactam ring. We now report reactions involving breaking of the N1-C4 bond in differently substituted at C3 4,4-bis(methylthio)azetidin-2-ones, leading to formation of 1,2- and 1,3-dicarbonyl systems.

Triphosgene: A versatile reagent for the synthesis of azetidin-2-ones

An efficient use of triphosgene, as an acid activator, for the synthesis of substituted azetidin-2-ones via ketene-imine cycloaddition reaction using various acids and imines have been described.

Unique zeolite-catalyzed synthesis of nitroketene S,N-acetals

Dimethyl carbonimidodithioates (4a-g, 7a-c) derived from various primary amines and amino acid esters [glycine, (L)-alanine and (L)-phenylalanine] have been condensed with nitromethane in the presence of the rare-earth exchanged zeolite RE(70%)Na Y to give the S,N-acetals (5a-g, 8a-c). Mercuric chloride catalyzed hydrolysis of these (8a-c) has led to the nitroacetyl derivatives (9a-c). The glycine derivative (7a) gives a dimeric product (11) when heated alone with the zeolite.

Improved process for the preparation of 1-substituted amino-1-substituted thio-2-nitro alkenes

A process is disclosed for the manufacture of 1-substituted amino-1-substituted thio-2 nitro alkenes of the general formula: (R1NH) (R2S) C=CR3 (NO2) wherein R1, R2, R3, may be same or different and may consist of hydrogen, alkyl, aryl or arylalkyl groups

An improved process for the preparation of 1-substituted amino-1-substituted thio-2-nitro alkenes

A process is disclosed for the manufacture of 1-substituted amino-1-substituted thio-2- nitro alkenes of the general formula: (R1 NH) (R2S)C=CR3(NO2) wherein R1, R2, R3 may be th

Synthesis of 4-Unsubstituted β-Lactams via Dithiocarbonimidates

Cycloaddition of dithiocarbonimidate 1 to the ketene generated in situ from phenoxyacetylchloride in the presence of triethylamine affords the 4-dithioalkyl-2-azetidinones 2 in good yields.Facile conversion of 2 to the 4-unsubstituted β-lactams 3 can be accomplished by desulfurization with Raney-Nickel.Formation of several interesting products during attempts to bring a carbonyl function at C-4 in 2 has also been described.