Zobrazeno 1 - 10
of 313
pro vyhledávání: '"A. J. KRESGE"'
Publikováno v:
ARKIVOC, Vol 2002, Iss 4, Pp 12-17 (2001)
Externí odkaz:
https://doaj.org/article/11131bc0dd544a0db30634ae25f1eceb
Publikováno v:
The Journal of Organic Chemistry. 71:4460-4467
Flash photolysis of 2-diazocyclopentane-1,3-dione in aqueous solution produced 2-oxocyclobutylideneketene, which underwent hydration to the enol of 2-oxocyclobutanecarboxylic acid; the enol then isomerized to the keto form of this acid. Rates of the
Publikováno v:
The Journal of Physical Chemistry A. 109:4149-4153
Keto-enol tautomerism in hydroxycyclopropenone (2-hydroxy-2-cyclopropen-1-one) has been studied using ab initio methods, the B3LYP functional of density functional theory, as well as complete basis set (CBS-QB3 and CBS-APNO) and G3 methods. Absolute
Publikováno v:
Canadian Journal of Chemistry. 83:68-76
Flash photolysis of 2-diazo-4,4,6,6-tetramethylcyclohexane-1,3-dione in aqueous solution produced 2-oxo-3,3,5,5-tetramethylcyclopentylideneketene, which underwent hydration to the enol of 2-oxo-3,3,5,5-tetramethylcyclo pentanecarboxylic acid; the eno
Publikováno v:
Journal of Physical Organic Chemistry. 17:579-585
p-Quinone α-phenylmethide (7) and p-quinone α,α-diphenylmethide (8) were generated by flash photolytic dehydration of p-hydroxy-α-phenylbenzyl alcohol (9, R1 = Ph, R2 = H) and p-hydroxy-α,α-diphenylbenzyl alcohol (9, R1 = R2 = Ph) respectively,
Autor:
A. J. Kresge, J. A. Chang
Publikováno v:
Journal of Physical Organic Chemistry. 16:598-602
The acid-catalyzed hydrolysis of diazophenylacetamide giving mandelamide as product was found to occur with a normal (kH/kD>1) hydronium ion isotope effect and to be subject to general acid rather than specific hydronium ion catalysis. This shows tha
Publikováno v:
Canadian Journal of Chemistry. 81:607-611
Flash photolysis of benzocyclobutenone in aqueous solution produced a transient species with a microsecond lifetime whose rates of decay were measured in perchloric acid, sodium hydroxide, and buffer solutions over the acidity range [H+] 1 × 1013
Publikováno v:
Physical Chemistry Chemical Physics. 5:1039-1042
Flash photolysis of methyl 2-hydroxyphenyldiazoacetate (8) in dilute aqueous perchloric acid solution and acetic acid and biphosphate ion buffers produced a transient species that was identified as o-quinone α-carbomethoxymethide (9). This structura
Publikováno v:
Journal of the American Chemical Society. 125:187-194
Flash photolysis of diazophenylacetamide in aqueous solution produced phenylcarbamoylcarbene, whose hydration generated a transient species that was identified as the enol isomer of mandelamide. This assignment is based on product identification and
Publikováno v:
Canadian Journal of Chemistry. 80:82-88
Rates of acid-catalyzed hydrolysis of 3-diazobenzofuran-2-one, measured in concentrated aqueous perchloric acid and hydrochloric acid solutions, were found to correlate well with the CoxYates Xo excess acidity function, giving kH+ = 1.66 × 104 M