<Abstract of annual report>Reactivities of Heteroaromatic Cations containing a Group VIB Element in Nucleophilic Reactions. : Reactions of 9-Phenyl-xanthylium, -thio-xanthylium, and -selenoxanthylium Salts with Amines, Sodium Phenolate, and Sodium Benzene
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- Synthesis and Reactions of 10-Chloro-10,9-(epoxyalkano)selenoxanthenes and 1-Chloro-1-phenyl-3H-2,1-benzoxaselenoles.
- Synthesis of 2,6-Epithio-3-benzazocine Derivatives.
- Synthesis and Analgestic Activity of Novel Heterocycles, [1]Benzothiopyrano[3,4-b]pyrrole Derivatives.
- Reactions of 1H-2-Benzothiopyran 2-Oxides with Active Methylene Compounds : A Novel Ring Contraction of 1-Aryl Derivatives to Benzo-[c]thiophenes. : X-Ray Molecular Structure of 1-(2,2-Diacetylvinyl)-3-phenylbenzo[c]thiophene.
- Synthesis of a New Skeleton, 2,6-Epithio-3-benzazocine.
- An Unexpected Double Cycloaddition of[1,2,4]Triazolo[1,5-a]pyrimidine N-Ylide with Activated Acetylenes and Alkenes.
- Novel Addition Products of 2-Aza-1-thiabenzene Derivatives with Methyl Propiolate.
- Ylide-induced Ylide Formation : A Novel Double Cycloaddition Reaction of a [1,2,4]Triazolo[1,5-a]pyrimidinium Ylide.
- Ylide-induced Ylide Formation : A Thermal Reaction and a Double Cyclo-addition Reaction of [1,2,4]Triazolo[1,5-a]pyridinium Ylides.
- Synthesis and Properties of Novel Medium-Sized Heterocyclic Compounds Containing Two Sulfur Atoms in the ring and Synthetic Approaches to Conjugated Cyclic Disulfonium Ylides.
- Synthesis and Thermal Transformation of Stable Monocyclic λ^4-Thiabenzenes.
- Reactivities of 1-Alkylthiabenzenes.
- Synthesis and Properties of a Novel Cyclic Sulfilimines, 2-Methyl-2,4,1-benzodithiazin-2-ium-1-ide.
- Ring Transformation of the Adducts of the Polar Cycloadditions of 2-Benzothiopyrylium Salts.
- Polar Cycloaddition of 2-Benzothiopyrylium Salts with Conjugated Dienes.
- Reactions of 9-Substituted 9-Thia-10-azaphenanthrenes with Electrophiles.
- Synthesis of 6- or 8-Carbon-Substituted 2-Oxopurines.
- Reactions of 9-Phenylthioxanthene 10-Oxide with Organometallic Reagents.
- Novel Rearrangements of Cyano-stabilised Cyclic Sulfur Ylides, 2-Alkyl-1-cyano-3,4-dihydro-1H-2-thionianaphthalen-1-ides : Spiro-compound Formation and Ring Expansion Reactions.
- Versatile Cyclisation Reactions Using Selenoboranes.
- Syntheses and Thermal Behaviour of 9-Substiuted 9-Thia-10-azaphenanthrenes.
- Reactions of Azathiabenzene Anion with Electrophiles. Formation and X-Ray Analysis of Novel Heterocyclic Compounds from the Reaction with Carboxylic Esters.
- Reactions of Xanthinium N(7)-Ylides with Olefinic Dipolarophiles.
- Generation and Properties of N^7-Xanthinium Ylides : Reactions of N^7-Xanthinium Ylides with Diphenylecyclopropenone and Acetylenic Compounds.
- Synthesis and Thermal Reaction of Cyano-Stabilized Cyclic Sulfur Ylides, 2-Alkyl-1-cyano-3,4-dihydro-1H-2-thionianaphthalen-1-ides.
- Ring Contraction of 2-Chlorocyclolhexanone with Grignard Reagents.
- A New Method for Radical Generation : Reductive C-Se or C-S Bond Cleavage of Cyclic Onium Salts.
- 10-Thia-anthracenes. Part 3. : A Re-examination of the Reaction of 9-Phenylthioxanthylium Salt and Phenyl-lithium.
- Endo Selective Cyclization of Selenonium Ion Intermediate : Efficient Formation of 1-Halo-3-selenocyclohexanes.
- Synthesis and Reactions of a Stable 2-Selenanaphthalene, 1-Cyano-2-methyl-2-selenanaphthalene.
- The C-O Bond Cleavage of Cyclic Ethers with Tris(phenylseleno)-borane-Lewis Acid.
- Novel Reaction of a Stable Selenanaphthalene, 1-Cyano-2-methyl-2-selenanaphthalene with Electrophiles.
- Vinyl Radical Generation with Selenoborane and Its Application to Cyclization Reaction of Enynes.
- Synthesis and Reactions of 1-Thianaphthalenes.
- Facil Synthesis of 8-Benzoylthio-2,6-methano-3-benzazocines and 3-Benzoylthiomorphinans Having Small-Ring Substituents.
- Novel Nonnarcotic Analgesics with and Improved Therapeutic Ratio. Structure-Activity Relationships of 8-(Methylthio)-and 8-(acylthio)-1,2,3,4,5,6-hexahydr0-2,6-methano-3-benzazocines
- Thermal Rearrangement of 9-Benzyl-10-aza-9-thiaphenanthrenes.
- Synthesis of New Cyclic Sulfur Ylides 9-Alkyl-10-cyano-9-thiaphenanthrenes and Their Novel Addition Reactions with Acetylenic Electrophiles.
- Opioid Receptor Affinities of Tyrosine ω-Phenylalkyl Esters, Simple Enkephalin Pharmacophore-mimics.
- First Isolation of Monocyclic Thiabenzenes.
- Stable 2-Thianaphthalenes : Synthesis and Reactions with Electrophiles.
- Synthesis and Analgetic Activity of Sulfur-Containing Morphinans and Related Compounds.
- Cyclic Selenonium exo-Ylides (3,4-Dihydro-1H-2-benzoselenin-2-io)-methanides; Syntheses and Reactions.
- Synthesis of Medium-sized Cyclic Sulfides and Selenides by Crosspiece C-X Bond Cleavage of Bicyclic Onium Salts bearing a Bridgehead Sulfur or Selenium Atom.
- Synthesis of 6-Substituted Purines from 3,7-Dimethyl-6-methylthio-2-oxopurine.
- Reduction of Sulfonium and Selenonium Salts with Samarium Diiodide.
- Synthesis of 1,2,3,4,5,6-Hexahydro-8-hydroxy-2,6-epithio-3-benzazocine.
- Novel Synthesis of Medium-sized Heterocycles Containing a Sulfur or Selenium Atom.
- Reactivities of Heteroaromatic Cations containing a Group VIB Element in Nucleophilic Reactions. : Reactions of 9-Phenyl-xanthylium, -thio-xanthylium, and -selenoxanthylium Salts with Amines, Sodium Phenolate, and Sodium Benzene
- Generation and Alkylation of α-Lithio-Se, O-heteroacetals, and Stereoselective Cyclization of Olefinic Se, O-Heteroacetals.
- A Useful Synthetic Method for α-Cyano Selenides.
- The First Successful Polar Cycloaddition of 1-Benzothiopyranylium Salts with Conjugated Dienes and Transformation of the Cycloadducts.
- A Polar Cycloaddition of 2-Thianaphthylium Ions with 1,3-Dienes and Some Properties of the Cycloadducts.
- 2-Methylisoselenochromanium Salts : Spectroscopic Properties and Reactions.
- Radical C-Se Bond Cleavage of Selenonium Salts with Grignard Reagents or Magnesium Metal.
- Generation and Thermal Reactions of 2-Methyl-4-oxo-2-selenoniochroman-3-ide.
- First Stable Selenabenzene Analogue, 2-Cyano-1-methyl-4-phenyl-1-selenanaphthalene : Synthesis and Reactions.
- Synthesis and Reaction of 9-Substituted 10-Phenylthioxanthenium Salts : Negative Evidence for Thia-anthracene Oligomerisation.
- Reactions of 10-Alkyl- and 10-Aryl-9-phenylthioxanthenium Salts with Various Bases : 1,4-Sigmatropic Rearrangement of 10-Alkyl- and 10-Aryl-9-phenyl-9-thiaanthracenes
- Synthesis and Thermal Reactions of New Cyclic Sulfur Ylides possessing 10π Electrons, 8-Alkyl-1,3-diphenyl-2H-dibenzo[b, f]cyclopenta[d]thiepinio-2-ides.
- Reactions of 8,9-Dihydroxanthines with Acetylenic Compounds.Formation of Heteropropellanes