Bromide,tert

Select bromide+tert-butyI chloride from the molecules on screen. This provides a series of frames describing the Sn2 displacement of chloride in rerr-butyl chloride by bromide. A bar appears at the bottom of the screen. [Pg.11]

Butyl amine (sec) amine iso) bromide (n) bromide (sec) bromide (iso) bromide (tert) 1- bromo-butane 2- bromo-butane 1 -Br-2-Me-propane 2-Br-2-Me-propane (C2H5)(CH3) CHNH2 (CH3)2CH-CH2NH2 CjHs CHjCHzBr CjHs-CHBr-CHs (CH3)2CH CHjBr (CH3)3CBr IV-160 IV-163 1-119 1-119 1-126 1-127 73.14 73.14 137.03 137.03 137.03 137.03... [Pg.36]

Ethylmagnesium bromide tert-hutanol 1,2-Oxathiolane 2-oxides from thietane dioxides Stereospecific ring expansion... [Pg.56]

Wisniak, J. Tamir, A. Vapor-liquid equilibria at 760 mmHg for the systems propyl bromide - tert-butyl alcohol and propyl bromide - p-xylene J. Chem. Eng. Data 1988,33, 106-108... [Pg.2109]

Isopropylmagnesium bromide Tert. alcohols from ketones Cation specificity... [Pg.166]

The rate of the reaction decreases with increasing number of substituents in the acetylenic halide, and it is higher with acetylenic bromides than with the corresponding chlorides. Methyl magnesium iodide gives equal amounts of 1,1- and 1,3--substitution products, whereas tert.-butylmagnesium bromide does not react. However, for some tert.-butyl substituted allenes there exists an attractive com-... [Pg.152]

The major difference between the two mechanisms is the second step The second step m the reaction of tert butyl alcohol with hydrogen chloride is the ummolecular dis sociation of tert butyloxonium ion to tert butyl cation and water Heptyloxonium ion however instead of dissociating to an unstable primary carbocation reacts differently It IS attacked by bromide ion which acts as a nucleophile We can represent the transition state for this step as... [Pg.164]

Further insight into the E2 mechanism comes from stereochemical studies One such experiment compares the rates of elimination of the cis and trans isomers of 4 tert butyl cyclohexyl bromide... [Pg.216]

FIGURE 5 11 Confer mations of as and trans 4 tert butylcyclohexyl bromide and their relationship to the preference for an anti copla nar arrangement of proton and leaving group... [Pg.217]

Use curved arrows to show the bonding changes in the reaction of CIS 4 tert butylcyclohexyl bromide with potassium tert butoxide Be sure your drawing correctly represents the spatial relationship between the leaving group and the proton that is lost... [Pg.217]

Write a series of equations describing a synthesis of 1 bromo 2 Tietny rop ol from tert butyl bromide J... [Pg.266]

Hughes and Ingold observed that the hydrolysis of tert butyl bromide which occurs readily is characterized by a first order rate law... [Pg.339]

They found that the rate of hydrolysis depends only on the concentration of tert butyl bromide Adding the stronger nucleophile hydroxide ion moreover causes no change m... [Pg.339]

Suggest a structure for the product of nucleophilic substitution obtained on solvolysis of tert-butyl bromide in methanol and outline a reason able mechanism for its formation... [Pg.340]

FIGURE 8 5 The SnI mecha nism for hydrolysis of tert butyl bromide... [Pg.340]

Illustrate the stereochemistry associated with unimolecular nucleophilic substitution by con structmg molecular models of cis 4 tert butylcyclohexyl bromide its derived carbocation and the alcohols formed from it by hydrolysis under S l conditions... [Pg.362]

Addition of phenylmagnesium bromide to 4 tert butylcyclohexanone gives two isomeric ter tiary alcohols as products Both alcohols yield the same alkene when subjected to acid catalyzed dehydration Suggest reasonable structures for these two alcohols... [Pg.620]

Hydrogen bromide may be used to remove either the benzyloxycarbonyl or tert butoxycarbonyl protecting group The benzyloxycarbonyl protect mg group may also be removed by catalytic hydrogenolysis... [Pg.1151]

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