19876-64-3Relevant academic research and scientific papers
A asymmetric catalytic synthesis (S)- aryl curcumene method
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, (2017/08/25)
The invention discloses a method for asymmetrically catalyzing and synthesizing (S)-curcumene. According to the method, racemization 2-halogenated propionate ester serves as a starting material, under the catalysis of bis oxazoline/ cobalt, an asymmetrica
Asymmetric synthesis of (R)-ar-curcumene, (R)-4,7-dimethyl-l-tetralone, and their enantiomers via cobalt-catalyzed asymmetric Kumada cross-coupling
Wu, Lin,Zhong, Jiang-Chun,Liu, Shi-Kuo,Liu, Fei-Peng,Gao, Zi-Dong,Wang, Min,Bian, Qing-Hua
, p. 78 - 83 (2015/12/31)
An efficient and concise asymmetric synthesis of (R)-(+)-ar-curcumene, (R)-4,7-dimethyl-l-tetralone, and their enantiomers was accomplished. The key step to construct the stereogenic benzylmethyl centers of these natural products is the cobalt-catalyzed a
Application of the lithiation-borylation reaction to the rapid and enantioselective synthesis of the bisabolane family of sesquiterpenes
Aggarwal, Varinder K.,Ball, Liam T.,Carobene, Simon,Connelly, Rickki L.,Hesse, Matthew J.,Partridge, Benjamin M.,Roth, Philippe,Thomas, Stephen P.,Webster, Matthew P.
, p. 9230 - 9232 (2012/09/10)
The expedient enantioselective synthesis of 5 bisabolane sesquiterpenes has been achieved using a common, one-pot lithiation-borylation reaction of secondary benzylic carbamates and either protodeboronation or oxidation to give the natural products in few
Enantioselective synthesis of (+)-nuciferal, (+)-(E)-nuciferol and (+)-α-curcumene by chiral hydrogenesterification reaction
Du, Zhenfing,Yue, Guoren,Ma, Junying,She, Xuegong,Wu, Tongxing,Pan, Xinfu
, p. 427 - 429 (2007/10/03)
Using chiral hydrogenesterification reaction as the key step, the stereoselective synthesis of (+)-nuciferal 1, (+)-(E)-nuciferol 2 and (+)-a-curcumene 3 has been achieved.
Rh-Mediated Cyclopentane Construction Can Compete with β-Hydride Elimination: Synthesis of (+/-)-Tochuinyl Acetate
Taber, Douglass F.,Hennessy, Michael J.,Louey, James P.
, p. 436 - 441 (2007/10/02)
Rhodium(II) carboxylate catalyzed C-H insertion to form a cyclopentane is shown to compete effectively with β-hydride elimination, except when the β-hydrogen is ternary.Cyclization of diazo ester 27 gives 28, which is converted in three steps to (+/-)-toc
Enantiodivergent Route to the Aromatic Bisabolane Sesquiterpenes by Regio- and Stereo-controlled Epoxide Opening
Takano, Seiichi,Yanase, Masashi,Sugihara, Takumichi,Ogasawara, Kunio
, p. 1538 - 1540 (2007/10/02)
An enantiodivergent route to aromatic bisabolane sesquiterpenes from a single chiral precursor has been established by employing regio- and stereo-controlled epoxide opening as the key step.
Dienophilic Properties of Phenyl Vinyl Sulfone and trans-1-(Phenylsulfonyl)-2-(trimethylsilyl)ethylene. Their Utilization as Synthons for Ethylene, 1-Alkenes, Acetylene, and Monosubstituted Alkynes in the Construction of Functionalized Six-Membered Rings via ? Cycloaddition Meth.
Carr, Richard V. C.,Williams, Richard V.,Paquette, Leo A.
, p. 4976 - 4986 (2007/10/02)
Useful procedures for effecting the indirect capture of ethylene, acetylene, 1-alkenes, and monosubstituted alkynes in Diels-Alder cycloadditions have been developed.In the first sequence, phenyl vinyl sulfone is shown to enter into ? reactions as a moderately reactive dienophile and to do so with very good regioselectivity.The resulting adducts can be directly desulfonated or alkylated prior to such reduction.A wide range of functional groups can be appended in this fashion at a specific locus within the newly formed six-membered ring.When the analogous chemistry is applied to trans-1-(phenylsulfonyl)-2-(trimethylsilyl)ethylene (2), adducts result which undergo ready fluoride ion induced elimination with efficient introduction of a double bond.The use of 2 and its d2 derivative is highlighted by the synthesis of several functionalized dibenzobarrelenes.
THE FIRST STEREOSELECTIVE SYNTHESIS OF (+)-NUCIFEROL AND (+)-NUCIFERAL
Takano, Seiichi,Goto, Emiko,Ogasawara, Kunio
, p. 5567 - 5570 (2007/10/02)
Using (S)-benzyl 2,3-epoxypropyl ether (1), the first stereoselective synthesis of (+)-nuciferol (14) and (+)-nuciferal (16) has been achieved.Employing the same methodology an enantioselective synthesis of (+)-α-curcumene (17) is also described.
