955-02-2Relevant articles and documents
Chemoselective rearrangement reactions of sulfur ylide derived from diazoquinones and allyl/propargyl sulfides
Zhou, Cong-Ying,Yan, Sijia,Rao, Junxin
supporting information, p. 9091 - 9096 (2020/12/02)
Here, we describe three types of rearrangement reactions of sulfur ylide derived from diazoquinones and allyl/ propargyl sulfides. With Rh2(esp)2 as the catalyst, diazoquinones react with allyl/propargyl sulfides to form a sulfur ylide, which undergoes a chemoselective tautomerization/[2,3]-sigmatropic rearrangement reaction, a Doyle?Kirmse rearrangement/Cope rearrangement cascade reaction, or a Doyle?Kirmse rearrangement/elimination reaction, depending on the substituent of the sulfides. The protocol provides alkenyl and allenyl sulfides and multisubstituted phenols with moderate and high yields.
RhII-Catalyzed Intermolecular C?H Arylation of Aromatics with Diazo Quinones
Wu, Kai,Cao, Bei,Zhou, Cong-Ying,Che, Chi-Ming
supporting information, p. 4815 - 4819 (2018/03/21)
We developed an efficient synthesis of biaryls by a dirhodium(II)-catalyzed aromatic C?H arylation with diazo quinones. The new biaryl synthesis can be performed under mild and neutral conditions and without directing group chelation assistance. The reaction tolerates various functionalities and is applicable to a broad range of aromatics. The regioselectivity of the C?H arylation was often high and predictable. The synthetic utility of the method was demonstrated by the late-stage modifications of a series of pharmaceuticals and functional materials as well as a short synthesis of a transthyretin amyloid inhibitor.
Quinone-type methanofullerene acceptors: Precursors for organic metals
Ohno, Toshinobu,Martín, Nazario,Knight, Brian,Wudl, Fred,Suzuki, Toshiyasu,Yu, Huinan
, p. 1306 - 1307 (2007/10/03)
We report details on the synthesis and electrochemistry of quinone-type methanofullerene derivatives in which, depending upon the substitution pattern on the cyclohexanedienone moiety, the reduction potential can be tuned, leading to novel fullerene deriv