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
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