Corrigenda

Abstract

The following footnote referring to compounds (2a, b, d, e, and f) was omitted:All new compounds were characterized on the basis of fully consistent spectral data [n.m.r., u.v., i.r., and mass spectra for (2a) and (2f) ; n.m.r. and mass spectra for (2b), (2d), and (2e)l. Revision of the Structure of the Cyanogenic Glucoside TriglochininBy MARTIN ETTLINGER and REYNIR EYJ~LFSSON

Ist das [9]Annulenkation ein Möbius‐Annulen?

“…Das UV/Vis‐Spektrum des Transienten B ist in qualitativer Übereinstimmung mit dem berechneten UV/Vis‐Spektrum des all‐ cis ‐9‐Chlorcyclononatetraens 2 H, 18 das bekannt dafür ist, dass es sich in einer photochemischen Reaktion aus 1 bildet 7a. Chlorcyclononatetraen 2 solvolysiert sehr schnell in flüssigem SO 2 ,7b was mit der beobachteten kurzen Lebenszeit in unserem LFP‐Experiment übereinstimmt.…”

Synthesis and Study of Select Heterocycles

“…by thermally activating urethane 12b instead of hydrocarbon 12d. Once the thermolytic behaviour of urethane 12b and 34 and their methoxycarbonyl 44 and acetyl 45 (Scheme 7b) counterparts became firmly established we resumed our search for monocycles in thermal transit and discovered acetamide 36 47 to be particularly suitable for this purpose. In brief, our studies here revealed 44 ' 45 that (i) the reportedly 4b clean thermal conversion of 12b to 34, effected on brief heating at 80°, is a far less specific process, generating as much as 23 per cent frans-fused dihydroindole, 35 37 that 34 thermally rearranges to ds-fused dihydroindole 14b at higher temperatures, is seriously inaccurate, the substance (34) thermolysing in our hands chiefly (ca.…”

“…It is tempting to attribute this rather substantial energy difference to the ability of the mono-trans 4,5-benzazoninyl anion to readily adopt the virtually strainless configuration shown in 52 and the inability of the corresponding car bo bicycle (47) to do so without generating seriously destabilizing 'inner' proton opposition. It is immediately seen that the two differ substantially in this connection with the aza analogues undergoing this transformation at a considerably faster pace (AAG* = 6 kcal/mol).…”

Synthese substituierter Cyclononatetraene

“…In der Folge wurden durch Umsetzung von CNT-(1) mit Elektrophilen (R-X bzw. R+) verschiedene einfache 1-substituierte Cyclononatetraene [3] [8] sowie 1-( 1-Cyclohep-tatrieny1)- [9] und 1-( 1-Cyclononatetraeny1)cyclononatetraen [ [12]. Auch bei der Umsetzung von 2 mit Acylhalogeniden entstehen in hohen Ausbeuten Cyclononatetra-I)…”