Oxidative synthesis of cyclic acyl aminals through carbon-carbon σ-bond activation

被引:26
作者
Aubele, DL [1 ]
Floreancig, PE [1 ]
机构
[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA
关键词
D O I
10.1021/ol026538m
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] Acyliminium ions can be prepared through photoinitiated single-electron oxidation reactions of homobenzylic amides and carbamates. Cyclic acyl aminals are formed when these acyliminium ions are appended to nucleophiles such as hydroxyl, ether, and sulfonamide groups. The scope of these reactions is discussed along with mechanistic issues relating to the energetics, chemoselectivity, and stereoelectronic effects of bond activation.
引用
收藏
页码:3443 / 3446
页数:4
相关论文
共 33 条
[1]   RADICAL IONS IN PHOTOCHEMISTRY .22. PHOTOSENSITIZED (ELECTRON-TRANSFER) CARBON-CARBON BOND-CLEAVAGE OF RADICAL CATIONS - THE 2-PHENYLETHYL ETHER AND ACETAL SYSTEMS [J].
ARNOLD, DR ;
LAMONT, LJ .
CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1989, 67 (12) :2119-2127
[2]   Mechanistic aspects of β-bond-cleavage reactions of aromatic radical cations [J].
Baciocchi, E ;
Bietti, M ;
Lanzalunga, O .
ACCOUNTS OF CHEMICAL RESEARCH, 2000, 33 (04) :243-251
[3]   Oxidative decarboxylation of α-amino acids:: A mild and efficient method for the generation of N-acyliminium ions [J].
Boto, A ;
Hernández, R ;
Suárez, E .
TETRAHEDRON LETTERS, 1999, 40 (32) :5945-5948
[4]   A kinetic evaluation of carbon-hydrogen, carbon-carbon, and carbon-silicon bond activation in benzylic radical cations [J].
Freccero, M ;
Pratt, A ;
Albini, A ;
Long, C .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (02) :284-297
[5]   2-NITROBENZENESULFONAMIDES AND 4-NITROBENZENESULFONAMIDES - EXCEPTIONALLY VERSATILE MEANS FOR PREPARATION OF SECONDARY-AMINES AND PROTECTION OF AMINES [J].
FUKUYAMA, T ;
JOW, CK ;
CHEUNG, M .
TETRAHEDRON LETTERS, 1995, 36 (36) :6373-6374
[6]   Inhibitors of carbohydrate-processing enzymes: Design and synthesis of sugar-shaped heterocycles [J].
Ganem, B .
ACCOUNTS OF CHEMICAL RESEARCH, 1996, 29 (07) :340-347
[7]  
HARDING KE, 1991, SYNTHETIC COMMUN, P1409
[8]  
HOWELL JO, 1984, J AM CHEM SOC, V106, P3698
[9]   Electron transfer initiated heterogenerative cascade cyclizations: Polyether synthesis under nonacidic conditions [J].
Kumar, VS ;
Aubele, DL ;
Floreancig, PE .
ORGANIC LETTERS, 2002, 4 (15) :2489-2492
[10]   Aerobic organocatalytic photoinitiated arene oxidations: Application to electron transfer initiated cyclization reactions [J].
Kumar, VS ;
Aubele, DL ;
Floreancig, PE .
ORGANIC LETTERS, 2001, 3 (25) :4123-4125