13894-61-6Relevant articles and documents
Ligand-controlled cobalt-catalyzed remote hydroboration and alkene isomerization of allylic siloxanes
Huang, Jiaxin,Li, Jie,Yang, Wen,Zhang, Kezhuo,Zhao, Pei,Zhao, Wanxiang
supporting information, p. 302 - 305 (2022/01/03)
The Co-catalyzed remote hydroboration and alkene isomerization of allylic siloxanes were realized by a ligand-controlled strategy. The remote hydroboration with dcype provided borylethers, while xantphos favored the formation of silyl enol ethers.
Model studies of the overall 5-endo-trig iodocyclization of homoallylic alcohols
Bedford, Simon B.,Bell, Kathryn E.,Bennett, Frank,Hayes, Christopher J.,Knight, David W.,Shaw, Duncan E.
, p. 2143 - 2153 (2007/10/03)
Overall 5-endo-trig iodocyclizations of homoallylic alcohols, with a range of substitution patterns, leading to β-iodotetrahydrofurans are usually highly efficient and stereoselective when carried out in anhydrous acetonitrile in the presence of sodium hydrogen carbonate. Such cyclizations, which are not exceptions to Baldwin's rules as they are electrophile-driven, appear to proceed via a well-ordered chair-like transition state. The iodine can be replaced by hydroxy, acetoxy and azide groups.
Regiochemical control of the ring opening of 1,2-epoxides by means of chelating processes.11. Ring opening reactions of aliphatic mono- and difunctionalized cis and trans 2,3- and 3,4-epoxy esters
Azzena, Francesca,Crotti, Paolo,Favero, Lucilla,Pineschi, Mauro
, p. 13409 - 13422 (2007/10/02)
The regiochemical outcome of the ring opening of 1,2-epoxides through chelation processes assisted by metal ions, was verified in the azidolysis of simple aliphatic cis and trans 2,3- and 3,4-epoxy esters and in the corresponding derivatives bearing an ether functionality (OBn) in an allylic relationship to the oxirane ring. The results indicate that the behavior of these epoxides is influenced both by the opening conditions (standard or metal-assisted) and the promoting metal salt [LiClO4 or Mg(ClO4)2]. Copyright