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Topic: Enone


In the News (Wed 15 Feb 12)

  
  Enone - Wikipedia, the free encyclopedia
An enone is an unsaturated chemical compound or functional group consisting of a conjugated system of an alkene and a ketone.
As an example an enone group is involved in a Knoevenagel condensation
An enone is a cousin of an enamine with the carbonyl replaced by a amine group.
en.wikipedia.org /wiki/Enone   (75 words)

  
 Pyridines   (Site not responding. Last check: 2007-11-05)
Enone 20 necessary to test our prediction was prepared by Wadsworth-Emmons reaction of 15 with phosphonate 24, followed by acid hydrolysis (Scheme 6).
Relative to the "anomeric" methoxy group, compound 26 may be regarded as the endo adduct of the enone with the (E)-isomer of ether 17.
We conclude this section by pointing out that the introduction of an a-dicarbonyl motif as a means to increase the reactivity of an enone that is otherwise disinclined to undergo lanthanide-mediated heterocycloaddition appears to be a general solution.
www.cpe.fr /ciufolini/Pyridine3.html   (2071 words)

  
 Scaiano's Group People   (Site not responding. Last check: 2007-11-05)
Nanosecond laser flash photolysis studies show that the previously characterized twisted triplet excited state of enone I is not quenched by TME or CP at concns.
It is concluded that the Corey-de Mayo mechanism for photoannelation; in which an enone triplet reacts with alkenes to give a triplet exciplex; does not apply to these systems.
The alkenes must be intercepting an intermediate derived from the enone triplet which is on the pathway to lumiketone.
photo.chem.uottawa.ca /morePubl.php?id=216   (229 words)

  
 Pyridines   (Site not responding. Last check: 2007-11-05)
Substitution patterns not directly available from an enone may thus be readily established through, e.g., methoxybromination followed by SN2 displacement and ensuing treatment with hydroxylamine.
Furan-substituted enones may thus be used as equivalents of those otherwise unreactive enones.
Enones already incorporating a side chain amide were found to be poor substrates for the cycloaddition step, seemingly because the more basic amide carbonyl coordinates strongly to the lanthanide catalyst, which becomes unavailable for the enone.
www.cpe.fr /ciufolini/Pyridine1.html   (5584 words)

  
 Regio- and enantioselective reduction of a a-methyleneketone by Rhodotorula glutinis   (Site not responding. Last check: 2007-11-05)
We wish to report that Rhodotorula glutinis CCT 2182 is able to reduce enone 3 (R= ethyl) efficiently in high regio- and enantioselectivity, using Amberlite XAD-7 as adsorbing resin to control the releasing of the substrate into the aqueous phase.
As shown in Figure 1, growing concentrations of enone 3 in the aqueous phase caused a significant drop in the enantiosectivity of the reaction.
However, this low concentration in the aqueous phase imparted a low rate of conversion of enone 3 by the yeast: a 3 days incubation period was required to reach total consumption of the substrate.
www.arkat-usa.org /ark/journal/2003/I10_Rossi-Ruveda/RR-946C/946C.asp   (1918 words)

  
 Double asymmetric induction of catalytic hetero-Diels-Alder reactions of prochiral sulfonyl-substituted ...
The reaction of enone 11 and vinyl ether 2a-c was carried out in the presence of catalyst 3a,b.
The mode of enantioselectivity is the same to that of enone 1a.
The similar reactivity of 11 regardless of size of the catalyst 3a,b is in contrast to that of enone 1a (reactivity: cat.
www.ch.ic.ac.uk /ectoc/echet96/papers/039   (581 words)

  
 Enone reductases, methods for producing same, and methods for selectively reducing a carbon-carbon double bond of an ...
Enone reductases, methods for producing same, and methods for selectively reducing a carbon-carbon double bond of an alpha,beta-unsaturated ketone using the reductases page
Enone reductases, methods for producing same, and methods for selectively reducing a carbon-carbon double bond of an alpha,beta-unsaturated ketone using the reductases
AccordingIy, original enone reductases derived frоm the genus Kluyveromyces аre рrоvided by the development.
www.patentalert.com /docs/001/z00129778.shtml   (182 words)

  
 Phedre
In her desire to preserve the dying Phèdre, Enone extracts a confession from her mistress that the Goddess Venus' foul curse of incestuous passion that has been killing her.
Enone accuses Hippolytus of attempting to rape Phèdre and Theseus in his rage banishes and curses him to the wrath of Neptune, God of the Sea.
Enone extinguishes herself under the waves after suffering her mistress' denunciations of her doings.
www.courttheatre.org /home/plays/0203/phedre/studyguides.shtml   (2938 words)

  
 World Intellectual Property Organization   (Site not responding. Last check: 2007-11-05)
Any suitable method is used to convert the bis (enone) to the triquinane diene.
The method of claim 11 wherein the bis (enone) is converted to the triquinane diene by (a) reacting the bis (enone) with an arylhydrazine to produce an arylhydrazone ; and (b) reducing the
The method of claim 11 wherein the bis (enone) is converted to the triquinane diene by reacting it with a triakylhydrosilane in the presence of a Lewis acid.
www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=03/87169.031023&ELEMENT_SET=DECL   (3507 words)

  
 [No title]   (Site not responding. Last check: 2007-11-05)
While investigating bug 16004, I noticed there is no E_NONE error constant.
I'll agree that this may not be a compelling reason to include E_NONE, but, I can't think of any compelling reason why _NOT_ to include it, especially considering that this is a two line patch that is not invasive at all.
Also, the documentation references E_NONE, so at least one other person feels it to be a reasonable constant, so much that they didn't check to make sure that the constant actually existed: http://us3.php.net/security.errors
bugs.php.net /lbugs.php?id=16330   (270 words)

  
 Diastereoselective Cycloreductions and Cycloadditions Catalyzed by Co(dpm)2-Silane (dpm = ...
Further mechanistic insight is obtained through examination of the effects of enone geometry on product stereochemistry and electrochemical studies involving cathodic reduction of bis(enone) substrates.
The collective experiments reveal competitive enone reduction pathways.
Enone hydrometalation produces metallo-enolates en route to aldol and Michael cycloreduction products, that is, products derived from coupling at the
pubs.acs.org /cgi-bin/jtext?jacsat/124/i32/abs/ja020223k   (306 words)

  
 MechMania X: src/auxlib/aux.cxx Source File
Rudder()) 00204 if (shp.Ship::SetRudder(0) != ENone) 00205 return -1; 00206 return 0; 00207 } 00208 turn = game.
Pos(), dest), 0.0); 00234 a = ang->revaluate(game); 00235 if (a == 1) 00236 { 00237 if (shp.Ship::SetSpeed(0.0) != ENone) 00238 return -1; 00239 turn = ang->turn; 00240 return 1; 00241 } 00242 else if (a == -1) 00243 return -1; 00244 d = sqrt(d); 00245 if (d > mspeed) 00246 { 00247 turn = game.
Turn() + (int)(d / mspeed); 00248 if (shp.Ship::SetSpeed(mspeed) != ENone) 00249 return -1; 00250 return 1; 00251 } 00252 turn = game.
www.acm.uiuc.edu /conference/mmxdocs/aux_8cxx-source.html   (547 words)

  
 Metabolism of the Antimalarial Endoperoxide Ro 42-1611 (Arteflene) in the Rat: Evidence for Endoperoxide Bioactivation ...
± 3.9% dose, 0-3 h) and the cis and trans isomers of the enone
The principal urinary metabolite appeared to be a glycine conjugate
but not of the enones, was inhibited by ketoconazole.
jpet.aspetjournals.org /cgi/content/abstract/289/1/511   (264 words)

  
 Xtreme Visual Basic Talk - Pocket PC serial port communication help
As I told hitesh and enone about this problem, from my opinion I think the problem is in the MSComm Control itself.
The Bluetooth manager is just fine since if I do not use the ActiveX Control, but use serial port communication primitives instead, it works just fine.
I kept mine at 14.4 just to play it safe.....but this can affect the data bits going over the serial port as well.
www.xtremevbtalk.com /showthread.php?t=96692   (2423 words)

  
 World Intellectual Property Organization   (Site not responding. Last check: 2007-11-05)
describes a single example of reduction of an acyclic aryl enone, 4-phenyl-3- buten-2-one, with chlorodiisopinocampheylborane giving an
eantiomeric selectivity, and no examples of simple acyclic non-aryl conjugated enones.
is added to the enone mixture maintaining the internal temperature at less
www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=01/87816.011122&ELEMENT_SET=DECL   (3581 words)

  
 Re: Why Compiler Const Error when no Compiler Const exists on Code Newsgroups
The VB6 compiler can't tell the two eNone enumerations apart.  This is a
> The VB6 compiler can't tell the two eNone enumerations apart.  This is a
of eNone.  This is a design bug in the VB 6 parser, one that it shares with
www.codenewsgroups.net /group/microsoft.public.vb.general.discussion/topic189.aspx   (747 words)

  
 University of Michigan Library Name Resolver Service   (Site not responding. Last check: 2007-11-05)
Bibliographic information is provided to confirm the link.
Title: Bie ning Principe Paris : at ing Pastorang y Enone ampon ing Pañgasira ning Troya.
Availability: These pages may be freely searched and displayed.
name.umdl.umich.edu /AUJ9320.0001.001   (70 words)

  
 enone - Band page with free MP3 music downloads on SoundClick   (Site not responding. Last check: 2007-11-05)
enone - Band page with free MP3 music downloads on SoundClick
Home > Music > Electronica > Electronica > enone
You may not otherwise reproduce, distribute, publicly perform, publicly display, or create derivative works of this material, unless authorized by the appropriate copyright owner(s).
www.soundclick.com /pro/default.cfm?BandID=281069&content=stations   (187 words)

  
 Thieme-connect - Abstract   (Site not responding. Last check: 2007-11-05)
Stereochemical Prediction in Macrocyclic Enone Switching Based on Molecular Mechanics Calculation
4 by dianion cyclization and enone switching reaction of the exo-enone
The stereochemical course of the macrocyclic enone switching is discussed based on MM2 calculations.
thieme-connect.com /ejournals/abstract/synlett/doi/10.1055/s-1993-22503   (78 words)

  
 [No title]
#include using std::stringstream; using std::vector; using std::cin; using std::cout; using std::endl; typedef unsigned long ULong; enum EVerbosity { eNone = 0, eSome = 1, eAll = 2 }; class SDefeat { public: SDefeat(void) {} ~SDefeat(void) {} ULong x; ULong y; ULong strength; ULong margin; }; #define ThrowIf_(x, theException) if (x) throw theException static void PrintHTMLMatrix(vector
> inVerbosity; verbosity = EVerbosity(inVerbosity); if (verbosity > eNone) { cout
0) { if (tie[ (y * nOptions) + y ] == 0) { kept[xyIndex] = considered[xyIndex] = 1; if (verbosity > eNone) cout
www.ericgorr.net /condorcet/rankedpairs/main.cpp   (330 words)

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