We reported that a benzyl-type binaphthyl disulfone could be conveniently converted into dibenzophenanthrene. Thus, racemic 1 was treated with lithium diisopropylamide (LDA) afforded dl-dibenzophenanthrene in a modera...We reported that a benzyl-type binaphthyl disulfone could be conveniently converted into dibenzophenanthrene. Thus, racemic 1 was treated with lithium diisopropylamide (LDA) afforded dl-dibenzophenanthrene in a moderate yield, together with an unknown benzensulfonyl-substituted derivative 2. The structures were confirmed by MS, 1H, 13C NMR and elemental analysis. The reaction might involve the initial intramolecular nucleophilic substitution to produce an intermediate 3, followed by elimination of benzenesulfinic acid to form dibenzophenanthrene.展开更多
Amino-1,10-phenanthroline and three types of new 5-substituted 1,10-phenanthroline derivatives by different alkyl amides, phen-NHCOR[phen=1,10-phenanthroline; R=CHCH 2; (CH 2) nBr, n=1,3—5; (CH 2) nCH 3, n=9—1...Amino-1,10-phenanthroline and three types of new 5-substituted 1,10-phenanthroline derivatives by different alkyl amides, phen-NHCOR[phen=1,10-phenanthroline; R=CHCH 2; (CH 2) nBr, n=1,3—5; (CH 2) nCH 3, n=9—14], were synthesized. They were characterized by means of elemental analyses, infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, and mass spectroscopy. These new compounds are important ligands or the active materials of ruthenium(Ⅱ) electrochemiluminescent(ECL) sensors.展开更多
文摘We reported that a benzyl-type binaphthyl disulfone could be conveniently converted into dibenzophenanthrene. Thus, racemic 1 was treated with lithium diisopropylamide (LDA) afforded dl-dibenzophenanthrene in a moderate yield, together with an unknown benzensulfonyl-substituted derivative 2. The structures were confirmed by MS, 1H, 13C NMR and elemental analysis. The reaction might involve the initial intramolecular nucleophilic substitution to produce an intermediate 3, followed by elimination of benzenesulfinic acid to form dibenzophenanthrene.
基金Supported by the Natural Science Foundation of Hainan Province(No.80 2 0 3)
文摘Amino-1,10-phenanthroline and three types of new 5-substituted 1,10-phenanthroline derivatives by different alkyl amides, phen-NHCOR[phen=1,10-phenanthroline; R=CHCH 2; (CH 2) nBr, n=1,3—5; (CH 2) nCH 3, n=9—14], were synthesized. They were characterized by means of elemental analyses, infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, and mass spectroscopy. These new compounds are important ligands or the active materials of ruthenium(Ⅱ) electrochemiluminescent(ECL) sensors.