Apr 7, 2008 - Alterna- 30 ethers, vinyl esters, N-vinyl amides, allyl ethers, allyltriaz- ..... thiol is particularly interesting since it provides a rationale for t ional thiol and an ene (such ..... H2C=CCl2, H2C=CHCOOR' where R' is ethyl, butyl, hexyl ... Similar procedures were used to prepare the other modi aka âIrgacure 651â) is ...