Reduction of imidazolium salts – An approach to diazocines and diazocanes

Shvydenko, Tetiana; Nazarenko, K. G.; Shvydenko, Kostiantyn; Boron, Sergey; Gutov, Oleksii V.; Tolmachev, Andrey A.; Kostyuk, Alexander

doi:10.1016/j.tet.2017.10.053

Cited by 6 publications

(2 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[26] In addition, this approach was also used for the synthesis of 1,4-diazocine derivatives based on quaternary salts of pyrrolo [1,2-a]imidazole. [27]…”

Section: Introductionmentioning

confidence: 99%

“…Thus, we recently showed that reductive ring expansion of 1,2‐annulated benzimidazoles using DIBAL−H can serve as a convenient method for the synthesis of benzannulated 1,4‐diazamedium ring heterocycles [26] . In addition, this approach was also used for the synthesis of 1,4‐diazocine derivatives based on quaternary salts of pyrrolo[1,2‐a]imidazole [27] …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Convenient Approach to 10‐ and 11‐Membered Azalactams

et al. 2023

Self Cite

View full text Add to dashboard Cite

A convenient method for the synthesis of 10‐ and 11‐membered azalactams via reductive cleavage of bicyclic systems featuring an amidine fragment was studied. It was found that the ring‐expansion reaction of bicyclic dihydropyrimidones depends on the ring size of saturated fragment, substituents in the pyrimidone core and reaction conditions. A new efficient method for the synthesis of medium ring azalactams by reductive cleavage of quaternary salts of annulated dihydropyrimidones was proposed as well. The obtained medium ring azalactams with a secondary amine function were used in the synthesis of bicyclic heteroaromatic systems.

show abstract

“…[26] In addition, this approach was also used for the synthesis of 1,4-diazocine derivatives based on quaternary salts of pyrrolo [1,2-a]imidazole. [27]…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%