A. G. Anastassiou

Trans-bicyclo[7.4.0]trideca-2,4,7,10,12-pentaene,3,4-benzocyclonona-1,3,5,7-tetraene and related substances

cis-Bicyclo(6,l ,0)nona-2,4,6-trien (I) addiert α-Pyron (II) zu einem Gemisch der Isomeren (III) und (IV), das zu (V) hydriert werden kann.

Generation and direct observation of the thioxanthenyl and N-methyl acridinyl anions; A family of stable, paratropic, “4N” π-excessives

The title, thermally stable, heterocarbanions (2a, 2b) were generated upon respective exposure of conjugate acids 4(a,b) to a KNH2/liq. NH3 system and were shown (NMR) to possess (2a more than 2b) distinct elements of paratropicity.

The potentially antiaromatic (4n-π) α-heteronaphthalenyl anions

Abstract Representative members of the title family of compounds were generated in liquid ammonia, and the “thia” analog 2c was sufficiently stable as to be directly examined by NMR.

The monobenzo and mononaphtho nonafulvene frames

Abstract The synthesis and spectroscopic characterization of two thermally stable, all-hydrocarbon, nonafulvenes, 2 and 3, are described.

Intramolecular competition of “cope” rearrangement within a conformationally mobile (3,8,3) tricycle

Abstract Contrasting the previously described thermolytic response of a conformationally restricted (3,8,3) oxatricyclodiene, the “Cope” transposition of its conformationally mobile epimer occurs via rupture of the molecules cyclopropane rather than oxirane cross-link.

A reply to: “Bis-pericyclic retrocycloaddition and the importance of avoiding piecewise analysis”

Abstract Recent criticism of a tentative interpretation of the cheletropic response of the aza-bicyclo[4.2.]nona-2,4,7-triene frame is shown to be invalid.

A stable trans-benzazoninyl anion

The title substance (2) is formed on mild thermal treatment of the all-cis counterpart (1) with net relief of steric congestion and acquisition of aromatic character.

The 9-azabarbaralane (9-azatricyclo[3,3,1,02,8]nona-3,6-diene) system

A convenient, high-yield, photoinduced entry into the novel 9-azabarbaralane system is described.

9-(7-Cycloheptatrienyl)-cis,cis,cis,cis-cyclonona-1,3,5,7-tetraene;synthesis and bond-relocation

The title substance was synthesized and was found to respond stereospecifically under the influence of heat and light.