✦ LIBER ✦

Anchimeric assistance in the gas phase dehydrohalogenation of 5-chloro-2-methylpent-2-ene

✍ Scribed by Gabriel Chuchani; Ignacio Martin; Miguel E. Alonso; Patricia Jano

Book ID: 102447527
Publisher: John Wiley and Sons
Year: 1981
Tongue: English
Weight: 268 KB
Volume: 13
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550130102

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

5‐Chloro‐2‐methylpent‐2‐ene decomposes at temperatures of 370–420°C with initial pressures from 61to 158 torr to yield hydrogen chloride and a mixture of methylpentadiene isomers. In a static system, with seasoned vessel and propene inhibitor, the reaction is homogeneous, unimolecular, and of the first order. The rate coefficient is expressed by the following Arrhenius equation: log k (sec^−1^) = (13.43 ± 0.30) − (215.0 ± 3.7) kJ/mol/2.303__RT__. The result ofthe present work additionally supports the participation of the neighboringaliphatic olefinic double bond in the rate of HCl elimination of alkenyl chlorides in the gas phase. Moreover, it also confirms the three‐membered conformation as the most favored structure for anchimeric assistance.

📜 SIMILAR VOLUMES

First synthesis of (±)-1α, 2α, 4β-trihyd

First synthesis of (±)-1α, 2α, 4β-trihydroxycyclohex-5-ene. Anchimeric assistance in conduritol syntheses

✍ Alan H. Haines; Amy S.H. King; Jonathan R. Knight; Viet-Anh Nguyen 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 239 KB

The deoxy-conduritol (lct,2ot,4l~)-l,2,4-trihydroxycyclohex-5-ene (6) has been prepared in racemic form from 1,4-benzoquinone in a six-step sequence, the key reaction involving a monohalide displacement by anchimeric assistance in the diacetoxy-dibromo compound previously employed for a synthesis of

Gas-phase rate coefficients for the reac

Gas-phase rate coefficients for the reactions of nitrate radicals with (Z)-pent-2-ene, (E)-pent-2-ene, (Z)-hex-2-ene, (E)-hex-2-ene, (Z)-hex-3-ene, (E)-hex-3-ene and (E)-3-methylpent-2-ene at room temperature

✍ Pfrang, Christian; MartinPresent address: University o, Robert S.; Nalty, Andrew 📂 Article 📅 2005 🏛 Royal Society of Chemistry 🌐 English ⚖ 601 KB

ChemInform Abstract: First Synthesis of

ChemInform Abstract: First Synthesis of (.+-.)-1α,2α,4β-Trihydroxycyclohex-5-ene. Anchimeric Assistance in Conduritol Syntheses.

✍ A. H. HAINES; A. S. H. KING; J. R. KNIGHT; V.-A. NGUYEN 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 34 KB 👁 1 views

Hydroxyl-radical formation in the gas-ph

Hydroxyl-radical formation in the gas-phase ozonolysis of 2-methylbut-2-ene

✍ Marston, G.; McGill, C. D.; Rickard, A. R. 📂 Article 📅 1998 🏛 American Geophysical Union 🌐 English ⚖ 434 KB

Kinetics of the pyrolyses of endo- and e

Kinetics of the pyrolyses of endo- and exo-5-methylbicyclo (2.2.2) oct-2-ene in the gas phase

✍ G. Huybrechts; G. Ngoy 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 389 KB 👁 1 views

## Abstract The pyrolyses of endo‐ and exo‐5‐methylbicyclo (2.2.2) oct‐2‐ene (endo‐ and exo‐MBO) have been studied between 608 and 679°K at pressures between 7 and 37 torr. These reactions correspond to parallel first‐order eliminations of propene and ethylene: equation image The rate constants (

The pyrolysis kinetics of 4-chloro-2-but

The pyrolysis kinetics of 4-chloro-2-butanone in the gas phase

✍ Rosa M. Dominguez; Gabriel Chuchani 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 273 KB 👁 1 views

## Abstract The rates of pyrolysis of 4‐chloro‐2‐butanone in the gas phase have been determined in a static system seasoned with the products of decomposition of allyl bromide. The reaction is catalyzed by hydrogen chloride. Under maximum catalysis of HCl, the kinetics were found to be of order 1.5