ISSN:
0009-2940
Schlagwort(e):
Allene
;
Oligomerization, thermal
;
Allene hexamers
;
Cycloadditions
;
Chemistry
;
Inorganic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
Alkynes and Cumulenes XXI1). - On Some New Oligomers of AlleneThe thermaloligomerization of allene (1) in the gas phase has been reinvestigated. AT 260°C and low conversions, 1,6,7-trimethylenespiro[3.5]nonan (14) and 1,2,5,6-tetramethylene cyclooctane (15) have been detected besides the already known thermal oligomers 2-8, increase of substrate concentration and reaction time lead to significant amounts of a hexamer fraction which contains the new allene oligomers 16-23 according to sepctroscopic analysis, Possible routes of formation of the unusual hexamers 16and 20 are discussed.
Zusätzliches Material:
1 Tab.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/cber.19901230534
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