Kinetics of the Reaction between Ethylene Chlorohydrin and Hydroxyl or Alkoxyl Ions in Mixed Solvents^1,2

Abstract

Kinetics of Ethylene Chlorohydrin Reactions with Hydroxyl 2449 lutions. Crystals, while well defined, were small. As has been indicated, the beta prime X-ray pattern is somewhat similar to that of subalpha. The distinguishing features are indicated in Table IV, a summary table of characteristic values. In brief, the chief difference is that beta prime lacks the two medium strength lines shown by subalpha for the region between 4.15 Á. and 3.65 Á.Beta.-The beta form is obtained by slow crystallization from solvent or by transformation of alpha and beta prime forms. It was not obtained directly from the melt. The crystals from solvent are relatively large platelets with a beautiful gloss. Beta is the only truly stable crystalline form.

Solvolytic Displacement Reactions At Saturated Carbon Atoms

“…is 5100 times faster than the corresponding reaction of ethyl chloride (287,586). If both reactions were direct displacements by ethoxide ion, the rate ratio would be expected to be of the order of 0.1 (page 588).…”

“…If both reactions were direct displacements by ethoxide ion, the rate ratio would be expected to be of the order of 0.1 (page 588). The product of the reaction with ethylene chlorohydrin, moreover, is ethylene oxide (586). The ring closure has been interpreted by Winstein and Lucas (680) by the following reaction sequence:…”

Dielectric Constants of Binary Systems.

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DlELECTRIC constants of liquids and gases in binary and ternary systems have become increasingly important in the evaluation of kinetic data, stability constants, and acid dissociation constants (3,7,8,11,12,13). Because of the paucity of such data, the dielectric constants of 14 binary systems of common solvents were determined (Tables I and

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Internal mammary artery and vein: Recipient vessels for free tissue transfer to the head and neck in the vessel‐depleted neck

“…The mechanism of ethylene oxide formation has been the subject of several works 13–16. It comprises a first fast acid‐base reaction, followed by a slow intramolecular rearrangement.…”