952688-12-9Relevant academic research and scientific papers
Copper(i)-catalysed stereoselective debromoborylation of aliphatic 1,1-dibromo-1-alkenes with bis(pinacolato)diboron
Pang, Yadong,Kojima, Ryoto,Ito, Hajime
supporting information, p. 6187 - 6190 (2018/09/10)
A stereoselective debromoborylation of aliphatic 1,1-dibromo-1-alkenes to prepare (Z)-1-bromo-1-alkenylboronate esters using copper(i) catalysts was developed. The debromoborylation of various aliphatic 1,1-dibromo-1-alkenes in the presence of a copper(i) catalyst and bis(pinacolato)diboron proceeded smoothly to produce (Z)-1-bromo-1-alkenylboronate esters in good yields with only Z geometry.
Rhodium(I)-catalyzed intramolecular hydroacylation of 4,6-dienals: Novel synthesis of cycloheptenones
Oonishi, Yoshihiro,Mori, Miwako,Sato, Yoshihiro
, p. 2323 - 2336 (2008/02/13)
Rhodium(I)-catalyzed hydroacylation of 4,6-dienals was investigated. Hydroacylation of 4,6-dienals with a substituent at the C7 position produced cycloheptenone derivatives as the major products, while the cyclization of 4,6-dienals with no substituent at the terminus of the diene moiety preferentially gave cyclopentanone derivatives. The olefinic geometry of the diene moiety in 4,6-dienals also affected the reaction course, and the cyclization of substrates with an E-olefin at the C6 position produced cycloheptenone derivatives as the major products, while a cyclopentanone derivative was obtained from a substrate with a Z-olefin at the C6 position. Georg Thieme Verlag Stuttgart.
