Synthesis of novel methanofullerenes spiro-coupled with the indolinone fragment and prospects of their use in light-absorbing layers of plastic solar cells
作者:I. P. Romanova、G. R. Shaikhutdinova、G. G. Yusupova、A. V. Bogdanov、L. I. Musin、D. G. Yakhvarov、M. I. Valitov、I. R. Nizameev、V. F. Mironov、O. G. Sinyashin
DOI:10.1007/s11172-011-0136-5
日期:2011.5
A series of novel 2′-oxospiro[cyclopropafullerene-3,3′-indolines] was synthesized. Compounds of this type have a significant potential for use as electron-withdrawing components of light-absorbing layers of solar cells.
Synthesis of diverse isatins via ring contraction of 3-diazoquinoline-2,4-diones
作者:Rajeev Shrestha、Gun Joon Lee、Yong Rok Lee
DOI:10.1039/c6ra13585d
日期:——
An efficient synthesis of diverse isatin derivatives was accomplished by a copper-mediated reaction of 3-diazoquinoline-2,4-diones viaringcontraction through domino Wolff rearrangement, decarboxylation, bromination, substitution, and dehydration. This protocol has several advantages as a one-pot procedure, with functional group tolerance, and high yield.
Catalytic Enantioselective Decarboxylative Allylations of a Mixture of Allyl Carbonates and Allyl Esters: Total Synthesis of (−)- and (+)-Folicanthine
作者:Santanu Ghosh、Saikat Chaudhuri、Alakesh Bisai
DOI:10.1002/chem.201502878
日期:2015.11.23
A highly enantioselectivedecarboxylativeallylation of a mixture of enol carbonates and allyl esters has been achieved. The strategic viability of this methodology has been demonstrated through the total synthesis of cyclotryptamine alkaloids (−)‐ and (+)‐folicanthine (1 a) and the formal total synthesis of (−)‐chimonanthine (1 b), (+)‐calycanthine (1 c), and (−)‐ditryptophenaline (1 d).