512 results on '"Klemm L"'
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52. Chemistry of thienopyridines. XXXVIII. Diels‐Alder reactions of thienopyridine sulfones. Part 2
53. ChemInform Abstract: Synthesis and Tautomerism of Ethyl 2-(2-Benzothiazolyl)-2-(6-purinyl)acetate and Related Compounds.
54. ChemInform Abstract: Chemistry of Thienopyridines. Part 36. Further Studies on Nitration in the Thieno(2,3-b)- and Thieno(3,2-b)pyridine Systems.
55. ChemInform Abstract: Chemistry of Condensed Thiophenes. Part 3. Acetylation of Triphenyleno(1,12-bcd)thiophene.
56. ChemInform Abstract: Synthesis of Chromophoric Analogs of Acetylcholine Halides.
57. ChemInform Abstract: Preparation of Azulene Derivatives: An Amino Acid, Dicarboxylates, an Isothiocyanate, and Related Compounds.
58. Synthesis of an s-butyldibenz[ a,h]acridine. Alkyl migration in the bernthsen reaction.
59. Chemistry of thienopyridines. XL. Reactions of 7-acetyl-4-(1-carboethoxy-1-cyano)methylene-4,7-dihydrothieno-[2,3- b]pyridine. Part 3: Kinetics of hydrolysis.
60. Chemistry of thienopyridines. XXXIX. Synthesis of benzothieno[2,3- h]isoquinoline and related studies.
61. Chemistry of condensed thiophenes. IV. Acetylation of phenanthro[4,5- bcd]thiophene.
62. Chemistry of thienopyridines. XXXVII. Syntheses in the cyclopenta, cyclohexa-, and cycloheptathieno[2,3- b]pyridine series. Three analogs of 9-amino-1,2,3,4-tetrahydroacridine.
63. Synthesis and tautomerism of ethyl 2-(2-benzothiazolyl)-2-(6-purinyl)acetate and related compounds.
64. Chemistry of thienopyridines. XXXVI. Further studies on nitration in the thieno[2,3- b]- and thieno[3,2- b]pyridine systems.
65. The insertion and extrusion of heterosulfur bridges. XVI. Synthesis of triphenyleno[1,12- bcd:4,5- b'c'd']dithiophene.
66. The insertion and extrusion of heterosulfur bridges. XV. S-bridging of 2,2′-binaphthyl and 1-(2-naphthyl)cyclohexene. Studies on hydrodehalogenation during the reaction.
67. The insertion and extrusion of heterosulfur bridges. XIV. Synthesis of nitrotriphenyleno[1,12- bcd]thiophenes.
68. Chemistry of thienopyridines. XXXV. Synthesis, tautomerism, and reactions of quinoline and thienopyridine systems which bear a 1-carboethoxy-1-cyanomethyl substituent in the pyridine ring, part 2.
69. The insertion and extrusion of heterosulfur bridges. XIII. Syntheses and structural studies of nitrophenanthro[4,5- bcd]thiophenes.
70. Chemistry of thienopyridines. XXXIII. Synthetic routes to 5- and 7-substituted thieno[3,2- b]pyridines from the N-oxide.
71. The insertion and extrusion of heterosulfur bridges. XII. Selectivity and side reactions in the bridging process.
72. Chemistry of thienopyridines. XXXII. Direct introduction of C-substituents gamma to the heteronitrogen atom in the thieno[2,3- b]pyridine system.
73. Chemistry of thienopyridines. XXXI. A new synthesis of thieno[3,2- b]pyridine and studies on direct substitution into its thiophene ring.
74. Chemistry of thienopyridines. XXIX. The reissert-henze reaction as a route to simple c-substituents alpha to the heteronitrogen atom.
75. Chemistry of thienopyridines. XXVIII. Mass spectra of fourteen substituted thienopyridines and nmr spectra of four picrates.
76. Comparative chromatographic adsorbabilities of some azines, thioles and thienopyridines, their heteroatom oxides and other derivatives on silica gel.
77. The insertion and extrusion of heterosulfur bridges. VII. Desulfurization of phenanthro[4,5- bcd]thiophene by means of methanol and a molybdena catalyst.
78. The insertion and extrusion of heterosulfur bridges. VI. Comparative desulfurizations of dibenzothiophene and biphenylthiols.
79. The insertion and extrusion of heterosulfur bridges. V. Desulfurization of dibenzothiophene by means of methanol and molybdena catalysts.
80. Chemistry of thienopyridines. XXV. Comparative mass spectra of some amino and acylamino derivatives.
81. Intramolecular diels-alder reactions. XI. Modal selectivity in the syntheses of some parent cyclolignan lactones.
82. Chemistry of thienopyridines. XXIII. Mass spectra of some N-oxides, sulfoxides, and sulfones.
83. Reductive acetylation of nitro compounds. III. Chemical transformations in three thiophene systems.
84. Chemistry of thienopyridines. XX. The relation of dipole moment to molecular structure.
85. Chemistry of thienopyridines. XIX. Further studies on chlorination and S-oxidation in the thieno[2,3- b] pyridine system.
86. Chemistry of thienopyridines. XVIII. Lithiation as a route to 2- and 3-substituted thieno[2,3- b]pyridines.
87. Chemistry of thienopyridines. XVII. Direct halogenation of thieno[2,3- b]pyridine.
88. SHALL TEACHERS BE PENSIONED?
89. Intramolecular diels-alder reactions. IX. Syntheses of N-benzylcyclolignan lactams.
90. Chemistry of thienopyridines. XV. Syntheses of thieno [3,4- b] - and thieno[3,4- c] pyridines.
91. Chemistry of thienopyridines. XIII. Selective formation of sulfones in Bi- and tricyclic Systems. Thieno[2,3- b]pyridine 1,1-dioxide as a dienophile.
92. Intramolecular Diels-Alder reactions. VIII. Syntheses of phenolic cyclolignan lactones.
93. Chemistry of thienopyridines. XII. Selective formation of N-oxides, sulfoxides, and sulfones in some tricyclic systems.
94. Synthesis of 5,12-diazadibenz[ a,h]anthracene.
95. Condensed thiophenes from sulfur bridging. II. Catalyzed reaction of azabiaryls with hydrogen sulfide.
96. Condensed thiophenes from sulfur bridging. I. Phenanthro[4,5- bcd]thiophene.
97. Chemistry of thienopyridines. VII. Mechanistic studies on the synthesis of thieno[2,3- c] pyridine by thermolytic cyclization.
98. Chemistry of thienopyridines. IX. Direct nitration of thieno[2,3- b]pyridine and thieno[3,2- b] pyridine.
99. Chemistry of thienopyridines. VIII. Substitution products derived from thieno[2,3- b] pyridine 7-oxide.
100. Chemistry of thienopyridines. IV. Syntheses of 5-substituted thieno[2,3- b] pyridines.
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