Click and Patterned Functionalization of Graphene by Diels–Alder Reaction
作者:Jing Li、Meng Li、Li-Li Zhou、Shuang-Yan Lang、Hai-Yan Lu、Dong Wang、Chuan-Feng Chen、Li-Jun Wan
DOI:10.1021/jacs.6b02209
日期:2016.6.22
graphene. Here, we designed cis-dienes, featuring two dihydronaphthalene backbones, to decorate a graphene surface viaDiels-Alder (DA) clickreaction. The installation of a diene moiety into a nonplanar molecular structure to form cis-conformation enables a rapid (∼5 min) DA reaction between graphene and diene groups. Patterned graphene of sub-micrometer resolution can be obtained by easily soaking
Synthesis and Structures of Multifunctionalized Helicenes and Dehydrohelicenes: An Efficient Route to Construct Cyan Fluorescent Molecules
作者:Jun‐Dao Chen、Hai‐Yan Lu、Chuan‐Feng Chen
DOI:10.1002/chem.201001655
日期:2010.10.18
Spiral up! A series of multifunctionalized benzo[5]helicene derivatives and a benzo[7]helicene were conveniently synthesized. Moreover, the oxidative cyclodehydrogenation of the benzo[5]helicenes by DDQ in trifluoroacetic acid or trifluoromethanesulfonic acid quantitatively provided the corresponding dehydro[5]helicene derivatives, which showed the cyanfluorescent properties (shown here).
Synthesis of benzo[b]naphtho[2,1-j]fluoranthene, benzo[a]naphtho[2,3-j]fluoranthene and other related benzo[j]fluoranthene derivatives
作者:Malcolm Crawford、V. R. Supanekar
DOI:10.1039/j39700001832
日期:——
With palladiumsulphide on barium carbonate as catalyst for dehydrogenation and cycloisomerisationbenzo[b]-naphtho[2,1-j]fluoranthene, benzo[a]naphtho[2,3-j]fluoranthene, and certain derivatives of benzo[j]fluoranthene have been synthesised. Sulphuric acid has been found useful for cycloisomerisation without dehydrogenation. The structure of the compound previously claimed to be benzo[a]naphtho[2
用碳酸钡硫化钯作为催化剂用于脱氢和cycloisomerisation苯并[ b ]萘并[2,1- Ĵ ]荧蒽,苯并[一个]萘并[2,3- Ĵ ]荧蒽和苯并的某些衍生物[ Ĵ ]荧蒽已经合成。已发现硫酸可用于不脱氢的环异构化。修改了先前声称为苯并[ a ]萘并[2,1- j ]荧蒽的化合物的结构。
448. A synthesis of benzo[j]fluoranthene and its derivatives, using palladium–sulphur as a cyclodehydrogenating agent