5244-75-7Relevant articles and documents
Synthesis of 1-Pyrroline by Denitrogenative Ring Expansion of Cyclobutyl Azides under Thermal Conditions
Ban, Kazuho,Miki, Yuya,Sajiki, Hironao,Sawama, Yoshinari,Tomita, Naohito
supporting information, p. 3481 - 3484 (2021/06/17)
We herein report an efficient and systematic synthesis of 1-pyrrolines from cyclobutyl azides under thermal and neutral conditions. The reaction proceeded without any additional reagents, and nitrogen was generated as the sole by-product. Furthermore, the generated 1-pyrrolines could be continuously transformed into pyrroles, N-Boc-amines, and oxaziridines in an one-pot manner. (Figure presented.).
Synthesis of multi-substituted cyclobutanes and alkylidenecyclobutanes by the reaction of cyclobutylmagnesium carbenoids with nucleophiles
Satoh, Tsuyoshi,Kasuya, Takashi,Ishigaki, Masashi,Inumaru, Mio,Miyagawa, Toshifumi,Nakaya, Nobuhito,Sugiyama, Shimpei
experimental part, p. 397 - 408 (2011/04/15)
Treatment of 1-chlorocyclobutyl p-tolyl sulfoxides with Grignard reagents such as ethylmagnesium chloride, isopropylmagnesium chloride, and cyclopentylmagnesium chloride in THF at low temperature gave cyclobutylmagnesium carbenoids in high yields. The gen
Enantioselective synthesis of 2-aryl cyclopentanones by asymmetric epoxidation and epoxide rearrangement
Shen, Yu-Mei,Wang, Bin,Shi, Yian
, p. 1429 - 1432 (2007/10/03)
(Chemical Equation Presented) Optically active epoxides are prepared by the highly enantioselective epoxidation of benzylidenecyclobutanes using a glucose-derived ketone as the catalyst and oxone as the oxidant. A subsequent Lewis acid catalyzed rearrange