𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Chemically activated 1,1-dimethylcyclopropane from photolysis of isobutene–neopentane–diazomethane–oxygen mixtures

✍ Scribed by G. W. Taylor; J. W. Simons

Book ID
102926271
Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
562 KB
Volume
3
Category
Article
ISSN
0538-8066

No coin nor oath required. For personal study only.

✦ Synopsis

A study of the structural isomerization rate of chemically activated 1, I-dimethylcyclopropane from singlet methylene addition to the double bopd of isobutene is reported. Singlet methylenes were produced from the 4358-and 3660-A photolysis of diazomethane in the presence of added oxygen. Theoretical rates calculated via RRKM theory are in excellent agreement with experiment for calculations utilizing activated complex structures and critical energies consistent with known thermal Arrhenius parameters, and excitation energies consistent with previous determinations of aHP,(CH2) , + E*(CH2) = 116.1 and 112.6 kcal/mole for diazomethane photolyses at 3660 and 4358 A, respectively.

📜 SIMILAR VOLUMES

Chemically activated 3-methyl-l-butene a
Chemically activated 3-methyl-l-butene and 2-methyl-l-butene from photolysis of diazomethane–isobutene–neopentane–oxygen mixtures
✍ G. W. Taylor; J. W. Simons 📂 Article 📅 1971 🏛 John Wiley and Sons 🌐 English ⚖ 565 KB

An experimental study of the decomposition kinetics of chemically activated 2-methyl-I-butene and 3-methyl-I-butene produced from photolysis of diazomethane-isobuteneneopentane-oxygen mixtures is reported. The experimental rate constants for 3-methyl-I-buteone decomposition were 1.74+0.44X lo8 sec-'