Sterically shielded tetrazoles for a fluorogenic photoclick reaction: tuning cycloaddition rate and product fluorescence†,Organic & Biomolecular Chemistry

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Sterically shielded tetrazoles for a fluorogenic photoclick reaction: tuning cycloaddition rate and product fluorescence†
Organic & Biomolecular Chemistry ( IF 2.9 ) Pub Date : 2018-07-04 00:00:00 , DOI: 10.1039/c8ob01404c
Peng An _{1,

2,

3,

4} , Qing Lin _{1,

2,

3,

4}

Affiliation

A panel of sterically shielded tetrazoles with different N-aryl groups were synthesized and subsequently evaluated in the photoinduced tetrazole–alkene cycloaddition reaction. It was found that increase in the HOMO energy of the corresponding nitrile imines leads to a faster cycloaddition reaction along with a red shift in the fluorescence emission of the pyrazoline cycloadduct.

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