1970
DOI: 10.1002/prac.19703120104
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Über die Homodimerisierung der konjugierten C5‐Diene

Abstract: InhaltsiihersichtDie Geschwindigkeiten der Homodimerisierung yon Cyclopentadien, Isopren, trans-PiperyIen und cis-PiperyIen verhalten sich bei 150" wie 1000 : 1,3 : 0,9 : 0,09. Isopren liefert vorwiegend, trans-Piperylen ausschliel3lich Sechsringdimere ; aus cis-Piperylen entstehen hauptsachlich Vierringdimere. Aus der Literatur sind kinetische Daten fur die nach 2. Ordnung verlaufenden Homodimerisierungsreaktionen von Cyclopentadien [I], von Isopren [ 21 und von trans-Piperylen [3] bekannt. Wir haben diese Re… Show more

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Cited by 14 publications
(5 citation statements)
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“…The relative ratios of isoprene dimers were not in accordance with the results already described in the literature [17], [19], [20], [22]. If III was generally the major compound at temperatures under 200 °C [17], [19], [20], [22], IV may be formed in higher amounts at temperatures above 200 °C [19], [20].…”
Section: Relative Ratios Of Dimersmentioning
confidence: 55%
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“…The relative ratios of isoprene dimers were not in accordance with the results already described in the literature [17], [19], [20], [22]. If III was generally the major compound at temperatures under 200 °C [17], [19], [20], [22], IV may be formed in higher amounts at temperatures above 200 °C [19], [20].…”
Section: Relative Ratios Of Dimersmentioning
confidence: 55%
“…1a and b. Six dimer peaks (1-6) appeared, which were attributed to compounds (I-VI) using literature [16], [17], [18] and NIST library ( Table 1). Moreover, it is noteworthy that no differences appeared in retention times and compounds areas before (TIC not shown) and after purification.…”
Section: Preparation and Identification Of Isoprene Dimersmentioning
confidence: 99%
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“…1-D). Peaks a was ascertained as consisting of two components 5 and 5' having the Table 4 B: Peaks a (1) 5%, b (2) 6%, c (3) 51%, d (3') 38% C: Peaks a (1) 5%, b (2) 5%, c (3, 4) 55%, d (3') 19%, e (4') 16% D: Peaks a (5, 5') 7%, b (6, 6') 72%, c (10) 21% E: Peaks a (7, 7') 4%, b (1) 2%, c (2) 2%, d (3,8) 16%, e (8') 20%, f (4') 9%, g (10) 19%, h (9) 28% signal intensity ratio of 3:7. Each configuration of 5 and 5' can be determined by considering the steric compression effect of the bridged carbon C-7.…”
Section: Reaction Of Cp and Cis-pdmentioning
confidence: 99%