Studies in Acyl C-H Activation via Aryl and Alkyl to Acyl "Through Space" Migration of Palladium

被引:47
作者
Kesharwani, Tanay [1 ]
Verma, Akhilesh K. [2 ]
Emrich, Daniel [1 ]
Ward, Jeffrey A. [1 ]
Larock, Richard C. [1 ]
机构
[1] Iowa State Univ, Dept Chem, Ames, IA 50011 USA
[2] Univ Delhi, Dept Chem, Delhi 110007, India
基金
美国国家科学基金会;
关键词
O-ALKENYL ANILIDES; VINYLIC HALIDES; 1,4-PALLADIUM MIGRATION; SUBSTITUTED CARBAZOLES; NITROGEN-HETEROCYCLES; NONCONJUGATED DIENES; UNSATURATED PHENOLS; FUSED POLYCYCLES; IODIDES; ACIDS;
D O I
10.1021/ol900940k
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Examples of the 1,4-migration of a palladium moiety in aryl- and alkylpalladium intermediates to the acyl position of an aldehyde or formamide have been observed. The resulting acylpalladium intermediate can undergo ester or carbamate formation by reaction with an alcohol; decarbonylation, followed by beta hydride elimination to an alkene; reaction with an organomercurial to form an ester; or alkene insertion. Deuterium-labeling studies have been used to confirm the palladium migration mechanism.
引用
收藏
页码:2591 / 2593
页数:3
相关论文
共 31 条
[1]   The palladium-catalyzed C-H activation of benzylic gem-dialkyl groups [J].
Baudoin, O ;
Herrbach, A ;
Guéritte, F .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (46) :5736-5740
[2]   Cyclocarbopalladation:: Sequential cyclization and C-H activation/Stille cross-coupling in the Pd-5-exo-dig reaction [J].
Bour, C ;
Suffert, J .
ORGANIC LETTERS, 2005, 7 (04) :653-656
[3]   1,4-Palladium migration via C-H activation, followed by arylation: Synthesis of fused polycycles [J].
Campo, MA ;
Huang, QH ;
Yao, TL ;
Tian, QP ;
Larock, RC .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (38) :11506-11507
[4]   Novel 1,4-palladium migration in organopalladium intermediates derived from o-iodobiaryis [J].
Campo, MA ;
Larock, RC .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (48) :14326-14327
[5]   Aryl to aryl palladium migration in the Heck and Suzuki coupling of o-halobiaryls [J].
Campo, Marino A. ;
Zhang, Haiming ;
Yao, Tuanli ;
Ibdah, Abdellatif ;
McCulla, Ryan D. ;
Huang, Qinhua ;
Zhao, Jian ;
Jenks, William S. ;
Larock, Richard C. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (19) :6298-6307
[6]   Pd-catalyzed alkyl to aryl migration and cyclization: An efficient synthesis of fused polycycles via multiple C-H activation [J].
Huang, QH ;
Fazio, A ;
Dai, GX ;
Campo, MA ;
Larock, RC .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (24) :7460-7461
[7]   C-H activation and palladium migration within biaryls under Heck reaction conditions [J].
Karig, G ;
Moon, MT ;
Thasana, N ;
Gallagher, T .
ORGANIC LETTERS, 2002, 4 (18) :3115-3118
[8]   Benzylic C-H activation and C-O bond formation via aryl to benzylic 1,4-palladium migrations [J].
Kesharwani, Tanay ;
Larock, Richard C. .
TETRAHEDRON, 2008, 64 (26) :6090-6102
[9]   HIGHLY STEREOSELECTIVE SYNTHESIS OF DISUBSTITUTED AND TRISUBSTITUTED HOMOALLYLIC ALCOHOLS VIA PALLADIUM(0)-CATALYZED NUCLEOPHILIC OPENING OF VINYLIC OXETANES [J].
LAROCK, RC ;
STOLZDUNN, SK .
TETRAHEDRON LETTERS, 1989, 30 (27) :3487-3490
[10]   MERCURY IN ORGANIC-CHEMISTRY .35. SYNTHESIS OF VINYLIC LACTONES FROM VINYLMERCURIALS AND ALKENOIC ACIDS VIA INTRAMOLECULAR PI-ALLYLPALLADIUM DISPLACEMENT [J].
LAROCK, RC ;
LEUCK, DJ ;
HARRISON, LW .
TETRAHEDRON LETTERS, 1987, 28 (42) :4977-4980