370 results on '"Wenkert E"'
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52. Diels-Alder Reactions of Cycloalkenones. 16. Endo Diastereoselectivity of Some Cycloalkenones in Reactions with 1,3-Cyclohexadiene
53. Diels-Alder reactions of cycloalkenones. 8. A one-step preparation of 4,4-dimetyl-1-octalones, useful intermediate in the terpene synthesis
54. Cyclopentanone Synthesis by intramolecular Carbon-Hydrogen Insertion of Diazo ketones. A Diterpene to Steroid Skeleton Conversion
55. ' Site Selectivity of Diels-Alder Reactions of a Bicyclic, Heteroannular Dienone'
56. Catalyzed Diels-Alder Reactions of Cycloalkenones. Effects Substitution on Reactivity and Face-Selectivity
57. Diels-Alder reactions of cycloalkenones. 4. Short synthesis of some cadinenes
58. Acid Catalyzed Diels-Alder reactions of cycloalchenones
59. Diels- Alder reactions of cycloalkenones. 6. 4-alkyl-2-cyclohexenones as dienophyles
60. Diels-Alder reactions of cycloalkenones.12. Reaction of trans- delta (1,2) -3 octalone with (E)- piperylene
61. La Reazione di Diels-Alder tra -Cicloalchenoni e Metilbutadieni
62. 'Diels-Alder Reactions of Cycloalkenones. 5. 5-Alkyl-2-cyclohexenones as Dienophyles'
63. Synthesis of 2-Cycloalkenones (Parts of 1,4-diacyl-1,3-butadiene systems) and of heterocyclic analogue by metal-catalyzed decomposition of 2-diazoacylfurans
64. Diels-Alder reactions of Cycloalkenones. 3. Effects of specific reation parameters
65. X-ray and carbon-13 nuclear magnetic resonance characterization of cyclopropane derivatives obtained by solvolysis of (E)-3α- and (E)-3β-hydroxy-5,10-seco-1(10)-cholesten-5-one tosylates
66. ChemInform Abstract: CARBON-13 NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY OF NATURALLY OCCURING SUBSTANCES PART 33, THE OCHROLIFUANINES AND EMETINE
67. ChemInform Abstract: Diels-Alder Reactions of Cycloalkenones. Part 9. Diastereofacial Selectivity of Mono- and Dialkylated 2-Cyclohexenones. Diels-Alder Reactions of Cycloalkenones. Part 10. endo-exo Diastereoselectivity of 2-Cyclohexenones.
68. ChemInform Abstract: TRIMETHYLSILYL TETRAFLUOROBORATE. A CONVENIENT REAGENT FOR SOLVOLYSIS REACTIONS
69. ChemInform Abstract: SYNTHESIS OF ALLENES BY NICKEL-CATALYZED GRIGNARD REACTIONS WITH SILYLPROPARGYL ALCOHOLS
70. Selective mono-arylation and -alkylation of bis(alkylthio)benzenes
71. ChemInform Abstract: A Novel Access to Ionone‐Type Compounds: (E)‐4‐Oxo‐β‐ionone and (E)‐4‐Oxo‐β‐irone via Metal‐Catalyzed, Intramolecular Reactions of α‐Diazo Ketones with Furans.
72. ChemInform Abstract: A SYNTHESIS OF DEETHYLVINCADIFFORMINE
73. ChemInform Abstract: Unusual Reactions of Magnesium Indolates with Benzenesulfonyl Chloride.
74. ChemInform Abstract: THE STEREOCHEMISTRY OF TETRAHYDROALSTONINE AND RELATED INDOLE ALKALOIDS
75. ChemInform Abstract: OXYTRYPTAMINES
76. ChemInform Abstract: A SYNTHESIS OF CONJUGATED DIENES FROM AROMATIC, FIVE-MEMBERED HETEROCYCLES
77. ChemInform Abstract: A CONFORMATIONAL ANALYSIS OF CYCLOPROPANODECALIN DERIVATIVES BY CARBON-13-NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY
78. ChemInform Abstract: Synthesis of 2‐Cyclcoalkenones (Parts of 1,4‐Diacyl‐1,3‐butadiene Systems) and of a Heterocyclic Analogue by Metal‐Catalyzed Decomposition of 2‐Diazoacylfurans.
79. ChemInform Abstract: Γ‐ALKYLATION OF α,β‐UNSATURATED CARBONYL COMPOUNDS
80. ChemInform Abstract: CARBON-13 NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY OF NATURALLY OCCURRING SUBSTANCES. 61. THE C(15) CONFIGURATION OF NATURALLY OCCURRING PIMARENE-15,16-DIOLS
81. ChemInform Abstract: PHOTOCHEMICAL HEAVY‐ATOM EFFECT. 8. MULTIPATHWAY PHOTODIMERIZATION OF 2‐METHYLTHIANAPHTHENE 1,1‐DIOXIDE. AN EXAMPLE OF A HEAVY‐ATOM EFFECT ON INTERSYSTEM CROSSING IN A 1,4 DIRADICAL
82. ChemInform Abstract: SYNTHESIS OF LYCOPODIUM ALKALOIDS OF THE LYCOPODINE STRUCTURE TYPE
83. ChemInform Abstract: HYDROCYCLOPROPA(B)ANTHRACENE DERIVATIVES
84. ChemInform Abstract: REPLACEMENT OF METHYLTHIO FUNCTIONS ON AROMATIC HETEROCYCLES BY HYDROGEN, ALKYL AND ARYL GROUPS VIA NICKEL-INDUCED GRIGNARD REACTIONS
85. ChemInform Abstract: CARBON‐13 NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY OF NATURALLY OCCURRING SUBSTANCES. 56. STRYCHNOS ALKALOIDS
86. ChemInform Abstract: TOTAL SYNTHESIS OF THE YOHIMBINES
87. ChemInform Abstract: Regiochemistry and Stereochemistry of Nickel‐Promoted, Carbon‐Carbon Bond‐ Forming Reactions of Cyclic Sulfur Compounds.
88. ChemInform Abstract: THE CLEMMENSEN REDUCTION OF OCTALINONES
89. ChemInform Abstract: UNCATALYZED AND LOW-VALENT NICKEL-ASSISTED REACTIONS OF α,β-UNSATURATED ALDEHYDE DIMETHYL ACETALS AND GRIGNARD REAGENTS
90. ChemInform Abstract: CARBON‐13 NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY OF VANILLIN DERIVATIVES
91. ChemInform Abstract: DIRECT STEREOCONTROLLED SYNTHESIS OF ISOCOMENE
92. ChemInform Abstract: SYNTHESIS OF ACYCLIC, CIS OLEFINIC PHEROMONES BY WAY OF NICKEL-CATALYZED GRIGNARD REACTIONS
93. ChemInform Abstract: CYCLOPENTANONE SYNTHESIS BY INTRAMOLECULAR CARBON-HYDROGEN INSERTION OF DIAZO KETONES. A DITERPENE-TO-STEROID SKELETON CONVERSION
94. ChemInform Abstract: Oxocyclopentenol Syntheses.
95. ChemInform Abstract: TRANSFORMATION OF CARBON-OXYGEN INTO CARBON-CARBON BONDS MEDIATED BY LOW-VALENT NICKEL SPECIES
96. ChemInform Abstract: Synthesis of Eburnamonine and Dehydroaspidospermidine.
97. ChemInform Abstract: A GENERAL OLEFIN SYNTHESIS
98. ChemInform Abstract: CARBON‐13 NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY OF NATURALLY OCCURING SUBSTANCES PART 30, GRISEOFULVIN
99. ChemInform Abstract: The Stereochemistry of Ring C Formation of Tetrahydrocarboline‐based Indole Alkaloid Systems.
100. ChemInform Abstract: TOTAL SYNTHESIS OF THE INDOLE ALKALOID OF VALLESIACHOTAMINE
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