4287-98-3Relevant academic research and scientific papers
Cationic palladium(II) complex-catalyzed [2 + 2] cycloaddition and tandem cycloaddition-allylic rearrangement of ketene with aldehydes: An improved synthesis of sorbic acid
Hattori, Tetsutaro,Suzuki, Yutaka,Uesugi, Osamu,Oi, Shuichi,Miyano, Sotaro
, p. 73 - 74 (2000)
Cationic palladium(II) complexes [PdL2(PhCN)2](BF4)2 efficiently catalyze the [2 + 2] cycloaddition of ketene with aldehydes to give the corresponding oxetan-2-ones, among which 4-vinyl-substituted ones are further isomerized under the conditions to give 3,6-dihydro-2H-pyran-2-ones in good yields.
Asymmetric Cycloaddition of Ketene with Aldehydes catalysed by Chiral Bissulfonamide-Trialkylaluminium Complexes
Tamai, Yasufumi,Yoshiwara, Hideki,Someya, Masahiro,Fukumoto, Jun,Miyano, Sotaro
, p. 2281 - 2282 (2007/10/02)
Asymmetric cycloaddition of ketene with the aldehydes 1a-g, catalysed by 10 molpercent of C2-symmetric bissulfonamide 2a-c-R3Al complexes afforded optically active 4-substituted oxetan-2-ones 3a-g in up to 74percent enantiomeric excess.
THE REACTION OF SMALL RING COMPOUND WITH CARBON MONOXIDE. THE CARBONYLATION OF OXIRANE
Kamiya, Yoshio,Kawato, Katsuhito,Ohta, Hiroyuki
, p. 1549 - 1552 (2007/10/02)
The carbonylation of oxiranes catalyzed by rhodium complex afforded β-lactones.Various factors which control the above reaction are presented.
