Generation, Direct Observation and Kinetics of Triplet (2,4,6-Triisopropylphenyl)phenylcarbene
The title carbene (2a) was generated and studied not only by product analysis but also by spectroscopic means. The results are compared with those observed for the corresponding tert-butyl analogue (2b), which revealed intriguing and unique natures required for kinetic protectors of triplet carbene.