@article{2f36b401fc2e4bf6a11e488cb422b5fd,
title = "Push–pull fluorenones and benzazulenequinones: regioselective [4+2] and [2+2] cycloadditions of benzopentalenequinone derivative and alkynes bearing an aniline moiety",
abstract = "The reaction of benzopentalenequinone with alkynes bearing an aniline moiety provides access to two classes of push–pull chromophores with interesting optoelectronic properties. The regioselective [4+2] cycloaddition/[4+1] retrocycloaddition sequence gives fluorenone derivatives, and the formal regioselective [2+2] cycloaddition/ring-opening reaction in polar solvents generates hitherto unknown benzazulenequinone derivatives.",
author = "Kato, {Shin ichiro} and Tomokazu Kijima and Yoshihito Shiota and Toshitada Yoshihara and Seiji Tobita and Kazunari Yoshizawa and Yosuke Nakamura",
note = "Funding Information: This work was supported by a Grant-in-Aid from MEXT , Japan (Nos. 15K05415 , 15K05416 ). S.K. acknowledges the financial support from Izumi Science and Technology Foundation ( H26-J-058 ). This work was performed under the Cooperative Research Program of “Network Joint Research Center for Materials and Devices” (Kyushu University: No. 2015474). Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",
year = "2016",
doi = "10.1016/j.tetlet.2016.09.002",
language = "English",
volume = "57",
pages = "4604--4607",
journal = "Tetrahedron Letters",
issn = "0040-4039",
publisher = "Elsevier Limited",
number = "41",
}