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Tandem Silylformylation/Wittig Olefination of Terminal Alkynes: Stereoselective Synthesis of 2,4-Dienoic Esters (2000)

Eilbracht, Peter ; Hollmann, Christoph ; Schmidt, Axel M. ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 2000 (2000), S. 1131-1135

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ISSN: 1434-193X

Keywords: Carbonylation ; Wittig reactions ; Rhodium ; Homogeneous catalysis ; Chemistry ; General Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: -The rhodium(I)-catalysed sequential silylformylation/Wittig olefination of terminal alkynes with hydrosilanes and carbon monoxide in the presence of stabilised P-ylides leads to substituted 2,4-dienoic esters in a one-pot procedure. The α,β,γ,δ-unsaturated esters are generated with high (2E,4Z) stereoselectivity in good to excellent yields. Conversions of the products in [2+1] cycloaddition reactions are presented.

Additional Material: 2 Tab.

Type of Medium: Electronic Resource

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