81779-73-9

Upstream product

• 619-73-8 4-nitrobenzyl chloride 
• 79-37-8 oxalyl dichloride 

Downstream Products

• 104742-05-4 2-[(4-nitrobenzyl)sulfanyl]pyridine 
• 868272-90-6 C₂₉H₄₃N₃O₁₀SSi 
• 192049-49-3 (3-Benzyl₇-oxo-4-thia-2,6-diaza-bicyclo[3.2.0]hept-2-en-6-yl)-3-methyl-but-2-enoic Acid 4-Nitro-benzyl Ester 
• 92445-73-3 [(3S,4R)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-4-(2-oxo-ethyl)-azetidin-1-yl]-oxo-acetic acid 4-nitro-benzyl ester 
• 141436-19-3 (5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester 
• 86623-76-9 C₁₇H₂₁N₂O₉PS 
• 76855-73-7 (5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-[2-(4-nitro-benzyloxycarbonylamino)-ethylsulfanyl]-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester 
• 69076-99-9 3-methyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester 
• 188532-06-1 (5R,6S)-3-tert-Butyl-6-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester 
• 188532-07-2 (5R,6S)-3-tert-Butyl-6-((R)-1-hydroxy-ethyl)-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester 
• 158168-59-3 (4R,5S,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-3-(2-diethylcarbamoyl-phenylsulfanyl)-4-methyl-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester 
• 357341-54-9 {3-[1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-2-[1-(2-{[3-methyl-2-(4-nitro-benzyloxycarbonylamino)-butyrylamino]-methyl}-tetrahydro-furan-3-ylsulfanylcarbonyl)-ethyl]-4-oxo-azetidin-1-yl}-oxo-acetic acid 4-nitro-benzyl ester 
• 263020-24-2 (3S,4S)-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-1-[[(p-nitrobenzyl)oxy]oxalyl]-4-[(R)-1-[[(R)-2-oxopyrrolidin-4-ylthio]carbonyl]ethyl]-2-azetidinone 
• 246848-28-2 [(2R,3S)-2-((R)-3-Isobutoxycarbonyloxy-1-methyl-2-oxo-propyl)-4-oxo-3-((R)-1-triethylsilanyloxy-ethyl)-azetidin-1-yl]-oxo-acetic acid 4-nitro-benzyl ester 

Relevant academic research and scientific papers

Process and ester derivatives useful for preparation of cephalosporins

This invention relates a process for preparing a compound of formula (I) wherein R1 is para-nitrobenzyl or allyl; and X is halo, which is useful to prepare 3-cyclic-ether-substituted cephalosporins, from trimethylphosphinic compounds. This invention also relates to compounds useful in such process.

Conversion of Hydroxyl Groups in Alcohols to Other Functional Groups with N-Hydroxy-2-thiopyridone, and Its Application to Dialkylamines and Thiols

The radical decarboxylation reaction of N-alkoxyoxalyloxy-2-thiopyridone which was prepared by the reaction of alcohol, oxalyl chloride, and N-hydroxy-2-thiopyridone was studied both in the absence and presence of olefinic compounds.The same reactions with olefinic and acetylenic alcohols gave the corresponding lactone derivatives.On the other hand the unsymmetrical alkyl 2-pyridyl disulfides were obtained by the same reaction with aliphatic thiols.