Trapping the π-Allylpalladium Intermediate from Fulvene-Derived Azabicyclic Olefin with Soft Nucleophiles

被引:15
作者
Rajan, Rani [1 ]
John, Jubi [1 ]
Thulasi, Sreeja [1 ]
Joseph, Nayana [1 ]
Radhakrishnan, K. V. [1 ]
Sawant, R. C. [1 ]
机构
[1] CSIR, NIIST, Organ Chem Sect, Chem Sci & Technol Div, Trivandrum 695019, Kerala, India
来源
SYNTHESIS-STUTTGART | 2010年 / 21期
关键词
azabicyclic olefin; palladium; soft nucleophile; alkylidenecyclopentene; substituted cyclopentanone; 2-hydrazinofulvene; ENANTIOSELECTIVE TOTAL-SYNTHESIS; PALLADIUM-CATALYZED REACTIONS; FISCHER CARBENE COMPLEXES; BICYCLIC HYDRAZINES; STEREOSELECTIVE-SYNTHESIS; ALKYLIDENE CYCLOPENTENES; FACILE SYNTHESIS; DERIVATIVES; REAGENTS; 2-ACETOXYMETHYL-3-ALLYLTRIMETHYLSILANE;
D O I
10.1055/s-0030-1258227
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A facile method for the synthesis of a new class of disubstituted alkylidenecyclopentenes has been introduced. The methodology involves the palladium-catalyzed ring opening of pentafulvene-derived bicyclic hydrazines with phenols and active methylene compounds, furnishing 1,4-disubstituted alkylidenecyclopentenes in good yield. The utility of multiple points of functionalization was effectively demonstrated by the synthesis of a substituted cyclopentanone and 2-hydrazinofulvene.
引用
收藏
页码:3649 / 3656
页数:8
相关论文
共 32 条
[1]   Facile synthesis of alkylidene cyclopentenes via palladium catalyzed ring opening of fulvene derived bicyclic hydrazines [J].
Anas, S. ;
Sajisha, V. S. ;
John, Jubi ;
Joseph, Nayana ;
George, Sholly Clair ;
Radhakrishnan, K. V. .
TETRAHEDRON, 2008, 64 (41) :9689-9697
[2]   Iodine assisted palladium catalyzed ring opening of bicyclic hydrazines with organoboronic acids: stereoselective synthesis of functionalized cyclopentenes and alkylidene cyclopentenes [J].
Anas, S. ;
John, Jubi ;
Sajisha, V. S. ;
John, Joshni ;
Rajan, Rani ;
Suresh, E. ;
Radhakrishnan, K. V. .
ORGANIC & BIOMOLECULAR CHEMISTRY, 2007, 5 (24) :4010-4019
[3]   Palladium/Lewis acid catalyzed desymmetrization of fulvene-derived bicyclic hydrazines: A facile synthesis of substituted alkylidene cyclopentenes [J].
Anas, S. ;
Sajisha, V. S. ;
Mohanlal, Smitha ;
Radhakrishnan, K. V. .
SYNLETT, 2006, (15) :2399-2402
[4]   Stereoselective synthesis of (E)-4-alkylidenecyclopent-2-en-1-ones by a tandem ring closure-Michael addition-elimination [J].
Ballini, R ;
Bosica, G ;
Fiorini, D ;
Gil, MV ;
Petrini, M .
ORGANIC LETTERS, 2001, 3 (09) :1265-1267
[5]   Metal-controlled selective [3+2] cyclization reactions of alkenyl Fischer carbene complexes and allenes [J].
Barluenga, J ;
Vicente, R ;
Barrio, P ;
López, LA ;
Tomás, M .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (19) :5974-5975
[6]   Highly chemo-, regio-, and stereoselective [3+2]-cyclization of activated and deactivated allenes with alkenyl Fischer carbene complexes:: A straightforward access to alkylidenecyclopentanone derivatives [J].
Barluenga, Jose ;
Vicente, Ruben ;
Lopez, Luis A. ;
Tomas, Miguel .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (21) :7050-7054
[7]   Enantioselective total synthesis of (+)- and (-)-nigellamine A2 [J].
Bian, Jianwei ;
Van Wingerden, Matthew ;
Ready, Joseph M. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (23) :7428-7429
[8]   Direct carbocyclization of aldehydes with alkynes: Combining gold catalysis with aminocatalysis [J].
Binder, Jorg T. ;
Crone, Benedikt ;
Haug, Timm T. ;
Menz, Helge ;
Kirsch, Stefan F. .
ORGANIC LETTERS, 2008, 10 (05) :1025-1028
[9]   On the use of phosphoramidite ligands in copper-catalyzed asymmetric transformations with trialkylaluminum reagents [J].
Bournaud, Chloee ;
Falciola, Caroline ;
Lecourt, Thomas ;
Rosset, Stephane ;
Alexakis, Alexandre ;
Micouin, Laurent .
ORGANIC LETTERS, 2006, 8 (16) :3581-3584
[10]   Guanacastepene, a fungal-derived diterpene antibiotic with a new carbon skeleton [J].
Brady, SF ;
Singh, MP ;
Janso, JE ;
Clardy, S .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (09) :2116-2117