Introduction and Formation OF Carbene with Examples, Diazomethane, Ketenes, Addition on Alkene (Singlet Carbene Mechanism, Triplet Carbene Mechanism)

Find out correct representation of singlet carbene :

Carbene introduction || Preparation OF carbene || Isocyanide test ||reimer tiemann reaction

Find out correct representation of triplet carbene :

The orbital picture of a triplet carbene can be drawn as

Demjanov Rearrangement With Examples |Dienone Phenol Rearrangement |Electrophilic Addition Reaction |Mechanism |Summary

State of hybridisation of carbon atom of carbene in the triplet state is

Singlet and Triplet Carbene || formation of carbene || addition of carbene on alkenes || simon smith reaction

Carbene intermediates are produced by the photolysis of diazomethane (CH_2N_2) or kenene (CH_2 = C = O) . They are also produced by the reaction of CHX_3 with base or by Simmons-Smith reaction. There are two types of carbenes, singlet and triplet. They are so called due to their spin state. Singlet and triplet carbene are same in :

The orbital picture of a singlet carbene (CH_(2)) can be drawn as