23304-58-7Relevant academic research and scientific papers
A new approach to organomanganese compounds: The tellurium/manganese exchange reaction
Silva, Márcio S.,Comasseto, Jo?o V.,Dos Santos, Alcindo A.
experimental part, p. 5426 - 5429 (2010/10/20)
Diorganomanganese compounds react with aryl, vinyl, and alkynyl tellurides in a tellurium/manganese exchange reaction. The new mixed organomanganese reagents react selectively with electrophiles.
The intermolecular β-coupling of cyclic enones with activated alkenes and alkynes: Unexpected β-alkoxy elimination from a 4-alkoxy-2-alkyl-1- hydroxy-cyclopentenyl radical
Pandey, Ganesh,Ghorai, Manas K.,Hajra, Saumen
, p. 8341 - 8344 (2007/10/03)
Intermolecular β-coupling of cyclic enones with activated alkenes or alkynes and an unexpected β-alkoxide elimination from 17 during the extension of this strategy towards the synthesis of optically pure prostaglandin analogues by the coupling of 16 and 11 is reported.
Selectivity in Organic Group Transfer in Reactions of Mixed Diorganomanganese(II) and Triorganomanganate(II) with 2-Cyclohexen-1-one or Cyclohexanecarbaldehyde
Yorimitsu, Hideki,Hayashi, Yasuhiro,Tang, Jun,Shinokubo, Hiroshi,Oshima, Koichiro
, p. 2297 - 2300 (2007/10/03)
The unsymmetrical diorganomanganeses(II) (R1R2Mn) and magnesium triorganomanganates(II) (R21R2MnMgX) reacted with 2-cyclohexen-1-one to produce the 1,4-addition products in moderate to good yields. The approximate reactivity order obtained from the product distribution was CH2=CHCH2 > PhS > n-Bu > Ph > Me, Me3SiCH2, n-C6H13-CΞC. In contrast, the reactivity order for the addition of these reagents to cyclohexanecarbaldehyde was CH2=CHCH2 > Ph > Me > n-Bu > n-C6H13CΞC > Me3SiCH2.
Yb/TMS-Br promoted homocoupling reactions of aliphatic ketones and α,β-unsaturated ketones
Taniguchi, Yuki,Nakahashi, Manabu,Kuno, Tatsuhiro,Tsuno, Masumi,Makioka, Yoshikazu,Takaki, Ken,Fujiwara, Yuzo
, p. 4111 - 4114 (2007/10/02)
Ytterbium metal reacts with trimethylsilyl bromide (TMS-Br) to give divalent YbBr2. YbBr2 thus formed in situ, causes coupling reactions of aliphatic ketones and α,β-unsaturated ketones to give bissilylated 1,2-diols and 1,6-ketones, respectively, in good yields.
ORGANOMANGANESE (II) REAGENTS XI. A Study of their Reactions with Cyclic Conjugated Enones : Conjugate Addition and Reductive Dimerization
Cahiez, G.,Alami, M.
, p. 569 - 572 (2007/10/02)
The reaction of organomanganese reagents such as RMnX, R2Mn, R3MnLi and R3MnMgX with cyclohexenone has been studied.Two major pathways have been observed : conjugate addition and β reductive dimerization.Similar results have been obtained with organomagnesium compounds in presence of a catalytic amount of manganous salts.
