Photostimulated reactions of haloarenes with 2-naphtylamide ions. A facile synthesis of 1-aryl-2-naphthylamines.
作者:A.B. Pierini、M.T. Baumgartner、R.A. Rossi
DOI:10.1016/s0040-4039(00)96588-2
日期:1987.1
The photostimulated reactions of aryl iodides with 2-naphthylamide ions in liquid ammonia gave 1-aryl-2-naphthylamines as the major substitution product. This reaction is proposed to occur by the SRN1mechanism of nucleophilic substitution
Ambient Temperature Dehydrogenative C(Ar)–H Carbonylative Lactamization of 2-Arylanilines Using DMF as C1-Source
作者:Yong-Ze Chen、Ting-Hui Ding、Qiang-Qiang Li、Jian-Ping Qu、Yan-Biao Kang
DOI:10.1021/acs.orglett.3c00585
日期:2023.4.21
dehydrogenative C–H cleaving carbonylative lactamization of 2-arylanilines promoted by visible light and potassium bases is reported. Solvent DMF acts as the sole carbonyl source in the absence of an oxidant. The irreversible release of hydrogen gas drags this reaction to the stable phenanthridinone products. This work provides a direct conversion of a broad range of 2-arylanilines to various phenanthridinones.
ortho-C–H arylation of free anilines with arylboric acids. Under the reaction conditions, a wide range of arylboric acids can couple with free anilines to produce the corresponding o-amino biaryls in moderate to good yields with good functional group tolerance. This reaction can be conducted on the gram scale. The products can be easily further functionalized via transformation of the free amino group. These
Regiochemistry of the coupling of aryl radicals with nucleophiles derived from the naphthyl system. Experimental and theoretical studies
作者:Adriana B. Pierini、Maria T. Baumgartner、Roberto A. Rossi
DOI:10.1021/jo00002a019
日期:1991.1
We here report the photostimulated reaction of unactivated aromatic halides with ambident nucleophiles derived from the naphthyl system such as 1- and 2-naphthylamide, 2-naphthoxide, 2-naphthalenethiolate, and 2-naphthaleneselenate ions, by the S(RN)1 mechanism of nucleophilic substitution. According to our experimental results, C-arylation in position 1 of the naphthyl moiety is the only reaction observed with 2-naphthoxide ions and it is favored over N-arylation with 1- and 2-naphthylamide ions. Heteroatom arylation is preferred over C-arylation with 2-naphthalenethiolate ions while it is the only observed reaction with 2-naphthaleneselenate ions. A theoretical study was carried out to explain the regiochemistry of the system. In competition experiments, 2-naphthalenethiolate ions proved to be 1.8 +/- 0.2 times more reactive than 2-naphthoxide ions for C-substitution toward p-anisyl radicals in liquid ammonia.
PIERINI, ADRIANA B.;BAUMGARTNER, MARIA T.;ROSSI, ROBERTO A., J. ORG. CHEM., 56,(1991) N, C. 580-586
作者:PIERINI, ADRIANA B.、BAUMGARTNER, MARIA T.、ROSSI, ROBERTO A.