cas 5451-55-8, 4-TERT-BUTYLCYCLOHEXANECARBOXYLIC ACID | Articles data ｜lookchem

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5451-55-8

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Study on the enolization of alkyl of cis and trans 2-tert-5-X-1,3-dioxanes (X =CO2CH3, CHO, COPh, NO2, and CN). Evidence for stereoelectronic control.
Alkylation ot 2-tert-butyl-5-X-1,3-dioxanes (X = CO2CH3,COPh and NO2) was studied.Products resulting from an equatorial approach of the alkylating agent are preferentially formed when X = CO2CH3 and NO2.Also, the cis isomers that have an equatorial hydrog
Nbidwami, Alexis,Deslongchamps, Pierre
p. 1788 - 1794
(2007/10/02)

The Stereochemistry of Organometallic Compounds. XXII The Stereochemistry of Metal-Catalysed Hydrogen Cyanide Addition to Olefins
Reactions of (E)-3,3-dimethyl(1,2-D2)but-1-ene with hydrogen cyanide and of (E)-3,3-dimethyl(1-D)but-1-ene with deuterium cyanide have been shown to proceed in a completely stereospecific cis fashion when a catalyst system based on Pd(diop)2 was used.Reaction between 4-t-butylcyclohexene and deuterium cyanide with the catalyst system gave only the equatorial nitriles trans-4-t-butylcyclohexane-1-carbonitrile and cis-3-t-butylcyclohexane-1-carbonitrile with cis incorporation of deuterium.Use of a catalyst system based on Ni4 and zinc chloride led to significant amounts of isotopic exchange and rearrangement.These results are compared with those from hydroformylation of the olefins, and the mechanism of hydrocyanation is discussed
Jackson, W. Roy,Lovel, Craig G.
p. 2053 - 2067
(2007/10/02)

Stereochemistry of Decarbalkoxylation of Cyclic Geminal Diesters Effected by Water and Lithium Chloride in Me2SO
The stereochemical consequences of the decarbalkoxylation of cyclic geminal diesters by LiCl-H2O-Me2SO have been examined.The norbornene diester 13 and the norbornane diester 16 lead predominantly to the exoesters 14 and 17, respectively.The 2-methylcyclohexane diester 22 leads to esters containing more cis (23) than trans (24) isomer.The diesters 19,25, and 28 lead to nearly equal amounts of the cis and trans esters.In these latter cases,the enolates generated from the esters (via LDA) are protonated in a nonstereoselective fashion on quenching with water.This is suggestive of an enolate intermediate in the decarbalkoxylation reaction.The implications of these sterochemical results are discussed.
Krapcho, A. Paul,Weimaster, John F.
p. 4105 - 4111
(2007/10/02)

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Chemical Properties

Melting Point: 5451-55-8
Boiling Point: 282.9 ºC at 760 mmHg
Flash Point:136.7 ºC
Density: 0.996 g/cm³
Solubility:soluble in Methanol
Storage Temp.:Store below +30°C.
Vapor Pressure: 0.000852mmHg at 25°C
PKA: 4.92±0.10(Predicted)
BRN: 2043187
PSA: 37.30000
LogP: 2.92350

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