140667-02-3

Upstream product

• 61652-09-3 2-Methyl-3-pentanone ethylene ketal 
• 712-74-3 1,2,4,5-tetracyanobenzene 
• 20487-40-5 tert-butyl propionate 
• 513-35-9 2-methyl-but-2-ene 
• 802294-64-0 propionic acid 

Relevant academic research and scientific papers

Alkyl Radicals from t-Butyl Esters through Photoinduced Electron Transfer

Alkyl radicals are octained under mild conditions from 1,2,4,5-benzenetetracarbonitrile SET photosensitized fragmentation of t-butyl esters.The same process occurs with undissociated carboxylic acids.

2 + 2 + 2 cycloaddition vs radical ion chemistry in the photoreactions of 1,2,4,5-benzenetetracarbonitrile with alkenes in acetonitrile

Irradiation of 1,2,4,5-benzenetetracarbonitrile (TCB) in acetonitrile in the presence of 1-hexene leads to two isomeric tetrahydroisoquinolines through a 2 + 2 + 2 cycloaddition between TCB, the alkene, and MeCN. The process occurs with moderate quantum y

Photochemical Reaction of Benzene-1,2,4,5-tetracarbonitrile with the Ketals of Cyclic and Bicyclic Ketones

The radical cations of the ethylene ketals of some cyclic and bicyclic ketones are generated by single electron transfer to excited benzene-1,2,4,5-tetracarbonitrile (TCB).Their fragmentation yields 1,5- and 1,6-distonic radical cations, which add to TCB(-.) to give alkyl>benzenetricarbonitriles.The reduction of the radical center occurs only to a small extent, and is enhanced in the presence of dodecylmercaptan, in the case of hindered radicals.The reaction of the camphor ethylene ketal (both alkylation of TCB and reduction) occurs with total diastereoselectivity at the reacting radical center.

Electron-donating Behaviour of Aliphatic Carboxylic Acids in the Photoreaction with 1,2,4,5-Tetracyanobenzene

Irradiation of an acetonitrile solution of 1,2,4,5-tetracyanobenzene with aliphatic carboxylic acids gives 2,4,5-tricyanoalkylbenzenes efficiently; electron transfer from the carboxylic acids to the excited tetracyanobenzene is essential.