1309468-56-1Relevant articles and documents
Triflic acid mediated cascade cyclization of aryldiynes for the synthesis of indeno[1,2-c]chromenes: Application to dye-sensitized solar cells
Jiang, Hua,Ferrara, Giovanni,Zhang, Xuan,Oniwa, Kazuaki,Islam, Ashraful,Han, Liyuan,Sun, Ying-Ji,Bao, Ming,Asao, Naoki,Yamamoto, Yoshinori,Jin, Tienan
supporting information, p. 4065 - 4070 (2015/10/19)
A new triflic acid (TfOH)-mediated cascade cyclization of ortho-anisole-substituted aryldiynes is described for the construction of indeno[1,2-c]chromenes. The cascade cyclization proceeds through an unusual TfOH-induced alkyne-alkyne cyclization followed by nucleophilic attack of the methoxy group on the benzylidene cation, which is completely different to the cyclization of ortho-aniline- or ortho-thioanisole-substituted aryldiynes. A new class of organic dyes with the indeno[1,2-c]chromene framework as both donor and π-linker were synthesized. These compounds exhibit high photovoltaic performances in dyesensitized solar cells (DSCs).
Efficient generation of indeno[1,2-c]chromenes via the Pd-catalyzed reaction of 2-alkynylhalobenzenes with 2-alkynylphenols
Luo, Yong,Hong, Linxiang,Wu, Jie
supporting information; experimental part, p. 5298 - 5300 (2011/06/21)
A palladium-catalyzed reaction of 2-alkynylhalobenzenes with 2-alkynylphenols in the presence of PCy3 is discovered, which provides an efficient and facile route to indeno[1,2-c]chromenes. This reaction works efficiently, leading to the corresp
