Photodeconjugaison enantioelective d'esters et de lactones conjuguees en presence d'ephedrine

[1]  T. Hudlický,et al.  Menthyl 2-bromocrotonate and menthyl 4-bromocrotonate: reagents for chiral vinylogous Darzens and Reformatsky reactions , 1987 .

[2]  A. C. Weedon,et al.  Direct observation of dienols produced by photochemical enolisation of α,β-unsaturated ketones: rates and activation parameters for dienol reketonisation via a 1,5-hydrogen shift , 1987 .

[3]  A. C. Weedon,et al.  Direct measurement of the rates of reketonization of dienolates produced by photochemical enolization of .beta.-alkyl .alpha.,.beta.-unsaturated ketones in aqueous basic solution , 1987 .

[4]  C. Decicco,et al.  Asymmetric induction in mixed [2 + 2] photoadditions. Effect of solvent, alkene concentration and temperature , 1987 .

[5]  M. Demuth,et al.  Asymmetric Photocycloadditions with Optically Pure, Spirocyclic Enones. Simple Synthesis of (+)‐ and (−)‐Grandisol , 1986 .

[6]  F. Lewis,et al.  Lewis acid catalysis of photochemical reactions. 5. Selective isomerization of conjugated butenoic and dienoic esters , 1986 .

[7]  F. Hénin,et al.  Enantioselective photodeconjugation of conjugated esters and lactones , 1986 .

[8]  S. Fleming,et al.  Efficient asymmetric (2 + 2) photocycloaddition leading to chiral cyclobutanes. Application to the total synthesis of (-)-grandisol , 1986 .

[9]  H. Scharf,et al.  Chiral induction in photochemical reactions. V: Regio- and diastereoselectivity in the photochemical [2+2] cycloaddition of chiral cyclenone-3-carboxylates with 1,1'-diethoxyethene , 1986 .

[10]  F. Hénin,et al.  Evaluation of the steric interactions responsible for the enantioselective photodeconjugation of α,β-unsaturated esters , 1986 .

[11]  F. Hénin,et al.  Enantioselective photodeconjugation of α,β-unsaturated esters: Effect of the nature of the chiral agent , 1986 .

[12]  A. C. Weedon,et al.  Photochemical enolization of acyclic .beta.-alkyl-.alpha.,.beta.-unsaturated ketones , 1986 .

[13]  A. C. Weedon,et al.  Direct observation of a photochemically produced dienol. Evidence for a noncatalyzed reketonization pathway unavailable to simple enols , 1985 .

[14]  H. Koch,et al.  Chirale Induktion bei photochemischen Reaktionen, II. Regio‐ und Diastereoselektivität bei der Oxetanbildung chiraler Phenylglyoxylate mit elektronenreichen Olefinen , 1985 .

[15]  D. A. Lombardo,et al.  Conversion of .alpha.,.beta.-unsaturated esters to their .beta.,.gamma.-unsaturated isomers by photochemical deconjugation , 1985 .

[16]  F. Hénin,et al.  Enantioselective photodeconjugation of α,β-unsaturated esters in the presence of catalytic amounts of a chiral-inducing entity , 1985 .

[17]  Moses Lee,et al.  Asymmetric induction in mixed [2 + 2] photoadditions employing a chiral auxiliary in the alkene component , 1985 .

[18]  C. Decicco,et al.  Asymmetric induction in simple [2 + 2] photoadditions , 1985 .

[19]  K. Tomioka,et al.  Asymmetric total synthesis of stoechospermol using intramolecular (2+2) photocycloaddition reaction , 1985 .

[20]  F. Hénin,et al.  Enantioselective photodeconjugation of conjugated lactones induced by small amounts of a chiral inductor , 1985 .

[21]  A. C. Weedon.  Base catalysis as an alternative explanation for an apparent deuterium solvent isotope effect in the photochemical reactions of α,β-unsaturated esters , 1984 .

[22]  Tamura Mitsuhisa,et al.  C3 epimerization and selective C2C3 bond fission of alkyl chrysanthemate , 1984 .

[23]  C. Portella,et al.  Photoreduction des esters car☐yliques dans l'hexamethylphosphortriamide (HMPT) , 1984 .

[24]  G. Etemad-moghadam,et al.  Synthese stereoselective d'esters α,β- ethyleniques α-methyles Z ou E par la reaction de wittig-horner a partir de phosphonates ou d'oxydes de phosphine , 1984 .

[25]  R. A. Murphy,et al.  A vicarious aromatic substitution approach to aklavinone from chrysazin , 1984 .

[26]  A. C. Weedon,et al.  Photoenolization of α,β-unsaturated esters; Effect of base upon product distribution and reaction rate in photochemical deconjugation , 1984 .

[27]  H. Rau.  Asymmetric photochemistry in solution , 1983 .

[28]  J. Runsink,et al.  Investigation of chiral induction in photochemical oxetane formation , 1983 .

[29]  Ayusman Sen,et al.  Oligomerization and isomerization of olefins by .eta.3-allyl complexes of palladium. The role of the allyl group , 1983 .

[30]  F. Hénin,et al.  A convenient synthesis of α-vinyl-lactones by photo-deconjugation of α,β-unsaturated γ- or δ-lactones , 1983 .

[31]  J. Muzart,et al.  Photoactivation of alkene oxidation by molecular oxygen in the presence of palladium , 1983 .

[32]  P. Boudjouk,et al.  Organic sonochemistry. Sonic acceleration of the Reformatsky reaction , 1982 .

[33]  B. Capon,et al.  Simple enols. 2. Kinetics and mechanism of the ketonization of vinyl alcohol , 1982 .

[34]  L. Tolbert,et al.  High optical yields in a photochemical cycloaddition. Lack of cooperativity as a clue to mechanism , 1982 .

[35]  Kazuhiko Tanaka,et al.  New Methods for Stereoselective Synthesis of α-Alkylidene-γ-butyrolactones Using Monoanion of O-Ethyl S-(Tetrahydro-2-oxo-3-furanyl) Thiocarbonate and Dianion of α-Mercapto-γ-butyrolactone , 1980 .

[36]  E. D. Mihelich,et al.  Asymmetric synthesis of 2-substituted butyrolactones and valerolactones , 1980 .

[37]  Davidr . Evans,et al.  Enantioselective alkylation of chiral enolates , 1981 .

[38]  H. Gotthardt,et al.  Unusally High Asymmetric Induction in the Photochemical Formation of Oxetanes , 1979 .

[39]  P. Wagner,et al.  The Photoenolization of 2-Methylacetophenone and Related Compounds , 1977 .

[40]  D. Seebach,et al.  Asymmetrische Synthese bei Photo‐, Elektro‐ und Alkalimetall‐Pinakolisierungen von Benzaldehyd und Phenonen im chiralen Medium DDB , 1977 .

[41]  Mark A. Johnson,et al.  A method for the synthesis of unsaturated carbonyl compounds , 1977 .

[42]  B. Barnett,et al.  Photochemistry of esters II. Effects of ring size on the photochemical behavior of α,β-unsaturated esters , 1976 .

[43]  W. Kirmse,et al.  Stereochemie aliphatischer Carbokationen, 9. Substituenteneffekte bei der 1,2‐Wasserstoffverschiebung , 1975 .

[44]  A. Moradpour,et al.  Photochemistry with circularly polarized light-III. Synthesis of helicenes using bis(arylvinyl) arenes as precursors , 1975 .

[45]  I. Niki,et al.  Synthesis of .alpha.-ylidene-.gamma.-butyrolactones using an .alpha.-phosphono-.gamma.-butyrolactone carbanion , 1974 .

[46]  Alec Moradpour,et al.  Preparation of chiral compounds with high optical purity by irradiation with circularly polarized light, a model reaction for the prebiotic generation of optical activity , 1974 .

[47]  T. Matsuo,et al.  A Study on the Photochemistry of α,β-Unsaturated γ-Lactones. II. Photoisomerization of 3-Ethylidene-4,5-dihydro-2(3H)-furanone , 1973 .

[48]  W. Agosta,et al.  Photochemical reactions of 1-cyclopentenyl and 1-cyclohexenyl ketones , 1973 .

[49]  U. M. Pagnoni,et al.  The stereochemical fate of the diradical intermediate in the photolysis of cyclododecen-2-one. , 1973 .

[50]  P. Borrell,et al.  The photochemical cis-trans isomerization of 2-carbomethoxy-2-butene , 1972 .

[51]  William J. Bernstein,et al.  Absolute asymmetric synthesis. I. Mechanism of the photochemical synthesis of nonracemic helicenes with circularly polarized light. Wavelength dependence of the optical yield of octahelicene , 1972 .

[52]  D. Seebach,et al.  Asymmetric induction of photopinacolization in a chiral amino ether , 1971 .

[53]  G. Tsoucaris,et al.  Photochemistry with circularly polarized light. Synthesis of optically active hexahelicene , 1971 .

[54]  J. P. Cosyn,et al.  Photochemistry with circularly polarised light. II) Asymmetric synthesis of octa and nonahelicene. , 1971 .

[55]  H. Inoue,et al.  Photolysis of 1-acetylcyclooctene. Direct observation of dienol intermediate in photochemical deconjugation of .alpha.,.beta.-unsaturated ketone , 1970 .

[56]  N. Jones,et al.  Aliphatic Friedel-Crafts reactions. Part VII. Preparation of αβ- and βγ-unsaturated ketones from substituted cyclohexenes , 1968 .

[57]  J. Barltrop,et al.  The mechanism of the photoisomerisation of α,β-unsaturated esters , 1968 .

[58]  P. Kropp,et al.  Photochemistry of cycloalkenes. V. Comparison with crotonic acid , 1967 .

[59]  R. C. Parish,et al.  A Method for the Esterification of Hindered Acids1 , 1965 .

[60]  N. Yang,et al.  Photochemical isomerization of simple α,β-unsaturated ketones , 1964 .

[61]  H. Flood,et al.  Studies of Hydrogen Bonding. Part III. Intermolecular Hydrogen Bond Association between Nitrogen Compounds and Methanol, Phenol, alpha-Naphthol and Pentachlorophenol. , 1962 .

[62]  James H. Brewster,et al.  A Useful Model of Optical Activity. I. Open Chain Compounds , 1959 .

[63]  P. Levene,et al.  THE CONFIGURATIONAL RELATIONSHIP OF ACIDS OF THE ISOPROPYL AND ISOBUTYL SERIES TO THOSE OF THE NORMAL SERIES , 1935 .