✦ LIBER ✦

Hydroxide ion initiated reactions in phase transfer catalysis. I. Isomerization of allylbenzene.

✍ Scribed by Marc Halpern; Minda Yonowich-Weiss; Yoel Sasson; Mordecai Rabinovitz

Publisher: Elsevier Science
Year: 1981
Tongue: French
Weight: 107 KB
Volume: 22
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)92529-8

No coin nor oath required. For personal study only.

✦ Synopsis

Allylbenzene (pK,* 34) was isomerized to trans and cis B-methylstyrene under phase transfer catalysis conditions. Several half lives of this reaction were measured under various conditions.

Phase transfer catalysis has been established as a widespread synthetic technique'.

Hydroxide ion initiated reactions (alkylations, carbene additions, deuterium exchange, etc.

📜 SIMILAR VOLUMES

Hydroxide ion initiated reactions under

Hydroxide ion initiated reactions under phase transfer catalysis conditions—IV : Effect of catalyst structure

✍ Marc Halpern; Yoel Sasson; Mordecai Rabinovitz 📂 Article 📅 1982 🏛 Elsevier Science 🌐 French ⚖ 355 KB

Reaction mechanism of phase-transfer cat

Reaction mechanism of phase-transfer catalysis initiated by hydroxide ion: Effect of alkalinity

✍ Maw-Ling Wang; Chau-Yun Yang 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 595 KB

The reaction of 2,4,6-tribromophenol (ArOH) and a-bromo-oxylene (RBr) catalyzed by tetrabutylammonium bromide (QBr) was carried out in an alkaline solution of KOl-I/organic solvent two-phase medium. A peculiar phenomenon, in which the rate of a PTC/OH reaction does not change monotonously with the c

Hydroxide ion initiated reactions under

Hydroxide ion initiated reactions under phase transfer catalysis conditions II. The roles of water and quat

✍ Marc Halpern; Yoel Sasson; Itamar Willner; Mordecai Rabinovitz 📂 Article 📅 1981 🏛 Elsevier Science 🌐 French ⚖ 236 KB

The effects of water molecules and quat structure are shown to be significant in determining the behavior of alkylation reactions of weakly acidic carbon acids under PTC/OH-conditions.

Hydroxide Ion-Initiated Deuteration of V

Hydroxide Ion-Initiated Deuteration of Very Weak CH Acidsunder Phase Transfer Catalysis Conditions

✍ Marc Halpern; David Feldman; Dr. Yoel Sasson; Prof. Mordecai Rabinovitz 📂 Article 📅 1984 🏛 John Wiley and Sons 🌐 English ⚖ 313 KB

An evaluation of polyethylene glycol as

An evaluation of polyethylene glycol as a catalyst in liquid-gas phase transfer catalysis: the base-catalyzed isomerization of allylbenzene

✍ Ronny Neumann; Yoel Sasson 📂 Article 📅 1985 🏛 Elsevier Science ⚖ 551 KB

I. Halide ion transfer reactions in the

I. Halide ion transfer reactions in the gas phase ion chemistry of haloalkanes

✍ J.H.J. Dawson; W.G. Henderson; R.M. O'Malley; K.R. Jennings 📂 Article 📅 1973 🏛 Elsevier Science ⚖ 753 KB