In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Synthesis of 4- and 4,5-Functionalized Imidazol-2-ylidenes from a Single 4,5-Unsubstituted Imidazol-2-ylidene, published in 2010-06-02, which mentions a compound: 1228185-09-8, mainly applied to imidazolylidene electrophile nucleophilic addition potassium hexamethyldisilazide intermol rearrangement; unsaturated carbon atom functionalized imidazolylidene derivative preparation, Reference of 2-Chloro-1,3-bis(2,6-diisopropylphenyl)-1H-imidazol-3-ium chloride.
Using the nucleophilicity of NHCs and aNHCs, as well as the leaving group ability of the former, the carbon-carbon double bond of imidazol-2-ylidenes can be readily mono- and difunctionalized. Following the addition of electrophiles to the carbene carbon between the nitrogen atoms of the imidazolylidene, the addition of potassium HMDS initiates an intermol. rearrangement leading to products functionalized on the unsaturated carbon atoms. These results provide also a new light on the formation of abnormal carbene adducts from classical unsaturated NHCs.
This literature about this compound(1228185-09-8)Reference of 2-Chloro-1,3-bis(2,6-diisopropylphenyl)-1H-imidazol-3-ium chloridehas given us a lot of inspiration, and I hope that the research on this compound(2-Chloro-1,3-bis(2,6-diisopropylphenyl)-1H-imidazol-3-ium chloride) can be further advanced. Maybe we can get more compounds in a similar way.
Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics