Catalytic Enantioselective Allyl–Allyl Cross-Coupling with a Borylated Allylboronate
摘要:
Catalytic enantioselective allyl-allyl cross-coupling of a borylated allylboronate reagent gives versatile borylated chiral 1,5-hexadienes. These compounds may be manipulated in a number of useful ways to give functionalized chiral building blocks for asymmetric synthesis.
A general and simple methodology for spirocyclopentannulation of cyclic ketones (or 4,4-disubstituted cyclopentenones from acyclic ketones) and its application in the synthesis of the spirodienone via a prochiral precursor constituting a formal totalsynthesis of (±)-acorone (), are described.
Rhodium-Catalyzed Chemo- and Regioselective Decarboxylative Addition of β-Ketoacids to Allenes: Efficient Construction of Tertiary and Quaternary Carbon Centers
作者:Changkun Li、Bernhard Breit
DOI:10.1021/ja411397g
日期:2014.1.22
A rhodium-catalyzedchemo- and regioselective intermolecular decarboxylative addition of β-ketoacids to terminalallenes is reported. Using a Rh(I)/DPPF system, tertiary and quaternary carbon centers were formed with exclusively branched selectivity under mild conditions. Preliminary mechanism studies support that the carbon-carbon bond formation precedes the decarboxylation and the reaction occurs
Naphthalenes microwave irradiation induced rearrangement on montmorillonite K-10
作者:A Srikrishna、P.Praveen Kumar
DOI:10.1016/0040-4039(95)01219-8
日期:1995.8
Irradiation of 4-aryl-4-alkylhex-5-en-2-ones (e.g. ) or 5-aryl-4-alkylhex-5-en-2-ones (e.g. ) adsorbed on montmorilloniteK-10 in a commercial microwave oven furnishes the multialkylated naphthalenes (e.g. ).
Catalytic Enantioselective Allyl–Allyl Cross-Coupling with a Borylated Allylboronate
作者:Hai Le、Robert E. Kyne、Laura A. Brozek、James P. Morken
DOI:10.1021/ol400088g
日期:2013.4.5
Catalytic enantioselective allyl-allyl cross-coupling of a borylated allylboronate reagent gives versatile borylated chiral 1,5-hexadienes. These compounds may be manipulated in a number of useful ways to give functionalized chiral building blocks for asymmetric synthesis.
Srikrishna, A.; Krishnan, K.; Venkateswarlu, S., Journal of the Chemical Society. Perkin transactions I, 1995, # 16, p. 2033 - 2038
作者:Srikrishna, A.、Krishnan, K.、Venkateswarlu, S.、Kumar, P. Praveen