132334-03-3

Upstream product

• 1640-39-7 2,3,3-trimethylindoleniune 
• 2904-62-3 2,6-dichlorobenzonitrile N-oxide 
• 96859-61-9 9,9,9a-trimethyl-3-mesityl-1,2,4-oxadiazolo<4,5-a>indoline 
• 132333-98-3 9,9,9a-trimethyl-3-(4'-chlorophenyl)-1,2,4-oxadiazolo<4,5-a>indoline 
• 132333-92-7 9,9,9a-trimethyl-3-phenyl-1,2,4-oxadiazolo<4,5-a>indoline 
• 132333-94-9 N--benzamidine 
• 96859-56-2 9,9,9a-trimethyl-3-(2',6'-dichlorophenyl)-1,2,4-oxadiazolo<4,5-a>indoline 

Relevant academic research and scientific papers

Preparation and catalytic hydrogenation of 1,2,4-oxadiazolo[4,5-a]indolines

2,3,3-Trimethyl-3H-indole 1 reacts with nitrile oxides 2 to afford 1,2,4-oxadiazolo [4,5-a]indolines 3 in high yields. Catalytic hydrogenation of compounds 3 over Raney nicke results in the cleavage of the oxadiazole ring and gives almost quantitatively products 4 or 5.