The solution phase decomposition of hexamethyl (Dewar benzene) palladium(II) chloride; a preliminary kinetic study.
✍ Scribed by Gerald F. Koser; David R. St. Cyr
- Book ID
- 104242931
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- French
- Weight
- 205 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
Hexamethyl(Dewar benzene)palladium(II) chloride (L), first reported by Diet1 and Maitlis in 1967, was found by those workers to be stable for ca 20 min. at 33O in deuteriochlorofonn after which time it decomposed rapidly and quantitatively to Aexamethylbenzene (2_) and palladous chloride. ' Hexamethyl(Dewar benzene) (2), the ,uncomplexed ligand, is much more stable than 1 toward isomerization to 2 (t l/2 = 105 hr at 120")2 possibly because concerted (n's + c2Sl cycloadditions are symmetry forbidden in the ground state. Hence, Pd(II), under homogeneous neutral conditions, is an efficient catalyst for the aromatization of 2. 3a,b