title: Diaceno[a,e]pentalenes from homoannulations of o-alkynylaryliodides utilizing a unique Pd(OAc)2/n-Bu4NOAc catalytic combination.
abstract: A heterogeneous catalytic system, Pd(OAc)2/n-Bu4NOAc, for the efficient synthesis of diaceno[a,e]pentalenes via a tandem Pd catalytic cycle is reported. The catalytic partner n-Bu4NOAc played indispensable and versatile roles, acting as both the media for recovering active Pd(0) species and their stabilizer. A series of new diaceno[a,e]pentalenes were obtained in moderate to high yields, among which the octacyclic dianthracenopentalene was found to be highly emissive.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors.forename: Junjian
authors.initials: J
authors.lastname: Shen
authors.forename: Dafei
authors.initials: D
authors.lastname: Yuan
authors.forename: Yan
authors.initials: Y
authors.lastname: Qiao
authors.forename: Xingxing
authors.initials: X
authors.lastname: Shen
authors.forename: Zhongbo
authors.initials: Z
authors.lastname: Zhang
authors.forename: Yuwu
authors.initials: Y
authors.lastname: Zhong
authors.forename: Yuanping
authors.initials: Y
authors.lastname: Yi
authors.forename: Xiaozhang
authors.initials: X
authors.lastname: Zhu