129589-71-5

Basic information

• Product Name: N-(tert-Butoxycarbonyl)-2,5-difluoroaniline
• CAS NO: 129589-71-5
• Molecular Weight: 229.227
• Mol File: 129589-71-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: N-(tert-Butoxycarbonyl)-2,5-difluoroaniline(CAS DataBase Reference)
• NIST Chemistry Reference: N-(tert-Butoxycarbonyl)-2,5-difluoroaniline(129589-71-5)
• EPA Substance Registry System: N-(tert-Butoxycarbonyl)-2,5-difluoroaniline(129589-71-5)

Safety Data

• Hazardous Substances Data: 129589-71-5(Hazardous Substances Data)

Upstream product

• 75-65-0 tert-butyl alcohol 
• 2991-28-8 2,5-difluorobenzoic acid 

Downstream Products

• 129589-74-8 Methyl 2-(tert-butoxycarbonylamino)-3,6-difluorobenzoate 
• 129589-73-7 Methyl 4-(tert-butoxycarbonylamino)-2,5-difluorobenzoate 
• 129589-72-6 N-(tert-Butoxycarbonyl)-2,5-difluoro-N-(methoxycarbonyl)aniline 

Relevant articles and documents

Metallation of N-(Pivaloyl)- and N-(tert-Butoxycarbonyl)difluoroanilines: Regiocontrol by Fluorine in the Synthesis of 4-Methoxycarbonyl Derivatives

Methyl 2,6-difluoro-4-(pivaloylamino)benzoate (3) and the corresponding 4-(tert-butoxycarbonylamino)-analogue 6 have been synthesised by reacting the appropriate 3,5-difluoroaniline derivatives with butyllithium followed by methyl chloroformate.N-(tert-Butoxycarbonyl)-2,3-difluoroaniline (9) required the "super-basic" butyllithium/potassium tert-butoxide mixture to convert it into methyl 4-(tert-butoxycarbonylamino)-2,3-difluorobenzoate (14): the 2,5-difluoro-analogue was formed in a similar manner.In all cases the regiocontrol of metallation was directed by fluorine rather than by the amide substituent.