[wonka_vision]

Hello - I'm trying to monitor the addition of an alkyne end group on a polymer I've made by forming a 1,2,3-triazole with sodium azide. Would anyone be able to tell me whether or not the 1,2,3-triazole is UV active? I am unable to find any mention of its spectral properties in the literature.

Thanks!

[discodermolide]

Hello - I'm trying to monitor the addition of an alkyne end group on a polymer I've made by forming a 1,2,3-triazole with sodium azide. Would anyone be able to tell me whether or not the 1,2,3-triazole is UV active? I am unable to find any mention of its spectral properties in the literature.

Thanks!

Would you expect them to be UV active?
It's very easy to check it!

[wonka_vision]

Hello - I'm trying to monitor the addition of an alkyne end group on a polymer I've made by forming a 1,2,3-triazole with sodium azide. Would anyone be able to tell me whether or not the 1,2,3-triazole is UV active? I am unable to find any mention of its spectral properties in the literature.

Thanks!

Would you expect them to be UV active?
It's very easy to check it!

Haha absolutely - However I'd like to know for sure before buying the copper catalyst to perform the cycloaddition.

[discodermolide]

Hello - I'm trying to monitor the addition of an alkyne end group on a polymer I've made by forming a 1,2,3-triazole with sodium azide. Would anyone be able to tell me whether or not the 1,2,3-triazole is UV active? I am unable to find any mention of its spectral properties in the literature.

Thanks!

Would you expect them to be UV active?
It's very easy to check it!

Haha absolutely - However I'd like to know for sure before buying the copper catalyst to perform the cycloaddition.

Well, go buy it!

[g-bones]

 2,3 dipolar cycloadditions of alkynes and azides need copper catalysts or high temperatures to go unless the alkyne is strained, like in a cyclooctyne.  At least that is the case with substituted azides, the anion though, I am less confident.  I would check out the work of Carolyn Bertozzi, Valery Fokin, and MG Finn for info on the Huisgen cycloaddition.  Hope this helps.