Action des reactifs de grignard sur les dithioesters
作者:S. Masson、M. Saquet、A. Thuillier
DOI:10.1016/0040-4020(77)88028-9
日期:1977.1
reagents with methyl dithioacetate give dithioacetals (or hemidithioacetals) resulting from a carbophilic addition process. Reactions with various allylic organomagnesium compounds always involve an “inversion” of the allylic chain and direct carbophilic addition, rather than initial thiophilic addition followed by [2.3] sigmatropic shift. Three methods for the synthesis of β-unsaturated ketones are described
The TDA-1 [N(CH2CH2OCH2CH2OCH3)3] chelating agent is able to complex Grignard reagents. This complexation leads to powders. The preparation is general and the complexes “RMgX/TDA-1” are easily prepared from every type of Grignard reagents. These solids are stable under nitrogen and can be titrated and used as Grignard reagents.
TDA-1 [N(CH 2 CH 2 OCH 2 CH 2 OCH 3)3 ]螯合剂能够使格氏试剂络合。这种络合产生粉末。制备是常规的,并且可以从每种格氏试剂容易地制备复合物“ RMgX / TDA-1”。这些固体在氮气下稳定,可以滴定并用作格氏试剂。
Meijer,J. et al., Recueil des Travaux Chimiques des Pays-Bas, 1973, vol. 92, p. 601 - 604
作者:Meijer,J. et al.
DOI:——
日期:——
Schuijl,P.J.W.; Brandsma,L., Recueil des Travaux Chimiques des Pays-Bas, 1968, vol. 87, p. 929 - 939
作者:Schuijl,P.J.W.、Brandsma,L.
DOI:——
日期:——
KPEGBA, KAFUI;METZNER, PATRICK, SYNTHESIS,(1989) N, C. 137-139