- A new organic transformation by introducing crotyl/allyltrifluoroborates in cross-coupling reaction with aroyl chlorides
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Microwave irradiated PdCl2(dtbpf) catalyzed direct cross-coupling reaction of aroyl chlorides with potassium crotyl/ allyltrifluoroborates has been developed. Regioselectivity of the cross-coupling product is varied from crotyltrifluoroborate to allyltrifluoroborate.
- Al-Masum, Mohammad,Liu, Kwei-Yu
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scheme or table
p. 5090 - 5093
(2011/10/19)
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- Ytterbium mediated coupling of α-oxonitriles with allylbromides: Convenient synthesis of β,γ-unsaturated ketones
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A new and efficient method for the preparation of β,γ-unsaturated ketones has been achieved by the simple reaction of an acyl cyanide with ailyl, crotyl and prenyl bromides and ytterbium metal in absolute tetrahydrofuran.
- Gohain, Mukut,Gogoi, Baikuntha J.,Prajapati, Dipak,Sandhu, Jagir S.
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p. 1038 - 1040
(2007/10/03)
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- Synthesis of β,γ- and α,β-Unsaturated Ketones Using Allyltitanium Reagents
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Carboxylic acid imidazolides (N-acylimidazoles) (4, 7a-c, 12) react with allyltitanium tris(amides) (3b, c, 10) to form β,γ-unsaturated ketones (5, 8a-c, 11a-d, 13) without carbinol formation or isomerization of the olefinic double bond.Controlled isomerization to α,β-isomers having E-configuration is possible under mild conditions using Al2O3.
- Reetz, Manfred T.,Wenderoth, Bernd,Urz, Ralf
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p. 348 - 353
(2007/10/02)
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