130 results on '"Hansen, H. J."'
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2. Formation of Azatropylium (Azepinium) Ions
3. Synthesis from Dihalocarbene Adducts of Cyclohexadienes
4. Methyl Azulene-2-carboxylates by the Hafner Method
5. Benzopentalenes by Flash-Vacuum Pyrolysis of Benzofurandiones
6. Tropones via Halotropylium Ions as Reactive Intermediates
7. Reaction with ()-1,2-Bis(phenylsulfonyl)ethene
8. Oxidation of a 3-Azepine
9. Reaction of Dimethyl Acetylenedicarboxylate with [(Triphenylarsoranylidene)methyl]cycloheptatrienones
10. Aryl-Substituted Tropylium Ions by Arylation of the Parent Ion
11. Reaction with Dimethyl (2)-But-2-enedioate
12. Carbolithiation of 5,6,11,12-Tetradehydrodibenzo[,]cyclooctene
13. Rearrangement of Anthryl-9,10-dicarbenic Species
14. Of Substituted Fulvenes and Thiophene 1,1-Dioxides
15. Synthesis of Heteroatom Analogues of Benz[]azulene
16. Pentalene Dimers
17. 1-Cyclopent[]indene by Gas-Phase Dehydrogenation/Decarboxylation
18. Tellurium-Mediated Chlorine Transfer
19. Hafner's Procedure
20. Cycloheptatrienylium (Tropylium) Salts
21. Rearrangement of 8-Oxabicyclo[3.2.1]oct-6-en-3-ones with Trimethylsilyl Trifluoromethanesulfonate and Triethylamine
22. Intermolecular Carbenoid Addition to a 4,7-Dihydroindane
23. Benzazulenes
24. Synthesis of Methyl (Azulen-2-yl)acetates
25. Reaction of 5-[(Dimethylamino)methylene]cyclopenta-1,3-dienecarbaldehyde with an Allylidenephosphorane
26. Transition-Metal-Catalyzed Homocoupling of 1-Ethynyl-2-halobenzenes
27. Alkylation of Methyl 4(5)-[(Phenylsulfonyl)acetyl]heptalene-5(4)-carboxylates with [(Phenylsulfonyl)methyl]lithium
28. Decarboxylation of Dimethyl Benzo[]heptalene-6,7-dicarboxylate
29. 2-Alkyl-3-cyanoazulene-1-carboxylic Acids as Precursors for 2-Alkylazulenes
30. β-Tropolone Methyl Ethers from Cyclopropanation of 3-Methoxy-Substituted Buta-1,3-diene Ketals
31. Best Route to γ-Tropolone
32. Carbenoid [2 + 1]-Addition Reactions
33. 1,3,5,7-Tetrasubstituted -Indacenes and Their Heteroatom Analogues
34. [6 + 4]-Addition Reactions
35. Elimination of Hydrogen Bromide from 1-Bromo-1,2-dihydropentalene Followed by Dimerization
36. 2,3-Dichloro-5,6-dicyanobenzo-1,4-quinone Oxidation of Spirocyclic Naphthalen-2-ones
37. Chlorocarbene Addition to Silyl Enol Ethers
38. Heteroanologues of Tropones
39. Ziegler–Hafner Synthesis of Deuterated Azulenes
40. 1-Cyclopent[]indene by Gas-Phase Elimination of Acetic Acid
41. Synthesis from Phenols by Dihalocarbene Addition
42. Light-Induced Synthesis of 3- and 4-Alkyltropones
43. Cyclopropanation of 2-Methoxy-Substituted Buta-1,3-diene Ketals
44. Tropones
45. Tropones from [4 + 2] Cycloaddition of Benzo-1,2-quinones and Arylalkynes
46. Benzopentalenes and Their Heteroatom Analogues
47. Alkylation of Heptalene-4,5-dicarboxylates with (Sulfonylmethyl)lithiums
48. Syntheses by [4 + 3] Combinations
49. Intramolecular Carbenoid Addition of (3-Aryl-3-bromopropanoyl)diazomethanes
50. 1,3,5,7-Tetra--butyl--indacene by Acid-Catalyzed Condensation
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