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Solvent Studies of the Cycloaddition...

Helwig, William.

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Solvent Studies of the Cycloaddition Reactions of Tricarbonyl[2-ethoxy-3-phenylvinylketene]iron(0) with Alkynes.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Solvent Studies of the Cycloaddition Reactions of Tricarbonyl[2-ethoxy-3-phenylvinylketene]iron(0) with Alkynes./
Author:	Helwig, William.
Description:	85 p.
Notes:	Source: Masters Abstracts International, Volume: 52-05.
Contained By:	Masters Abstracts International52-05(E).
Subject:	Organic chemistry. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1525141
ISBN:	9781303828096

Solvent Studies of the Cycloaddition Reactions of Tricarbonyl[2-ethoxy-3-phenylvinylketene]iron(0) with Alkynes.
Helwig, William.

Solvent Studies of the Cycloaddition Reactions of Tricarbonyl[2-ethoxy-3-phenylvinylketene]iron(0) with Alkynes. - 85 p.

Source: Masters Abstracts International, Volume: 52-05.

Thesis (M.S.)--Long Island University, The Brooklyn Center, 2014.

A novel solvent study was employed to interpret solvent and coordination effects on the cycloaddition of methyl propiolate and tricarbonyl [2-ethoxy-3-phenylvinylketene] Iron(0) in eight different organic solvents (cyclohexanes, toluene, 1, 2- dichloroethane, 1, 4- dioxane, 2-methyl tetrahydrofuran, tetrahydrofuran, acetonitrile, and dimethylformamide) to yield moderate yields of one regiosiomer product that was extrapolated from a semi-quantitative standard curve measured against biphenyl integral ratios. The reaction was monitored by Gas Chromatography Mass Spectrometry (GC-MS) and products were confirmed by proton, and carbon NMR, and GC-MS. Trimerization products were observed as the major by-products. A second study involved the cycloaddition between prop-2-ynal and tricarbonyl [2-ethoxy-3phenylvinylketene] Iron(0) that yielded moderate yields of one regiosiomer with no trimerization products. The product was confirmed by GC-MS, proton and carbon NMR. Both reactions involved a net [4+2] cycloaddition between alkyne and eta4-iron(0) vinylketene.

ISBN: 9781303828096Subjects--Topical Terms:

523952
Organic chemistry.

Solvent Studies of the Cycloaddition Reactions of Tricarbonyl[2-ethoxy-3-phenylvinylketene]iron(0) with Alkynes.
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100 1 $a Helwig, William. $3 3180582
245 1 0 $a Solvent Studies of the Cycloaddition Reactions of Tricarbonyl[2-ethoxy-3-phenylvinylketene]iron(0) with Alkynes.
300 $a 85 p.
500 $a Source: Masters Abstracts International, Volume: 52-05.
500 $a Adviser: Nadarajah Vasanthan.
502 $a Thesis (M.S.)--Long Island University, The Brooklyn Center, 2014.
520 $a A novel solvent study was employed to interpret solvent and coordination effects on the cycloaddition of methyl propiolate and tricarbonyl [2-ethoxy-3-phenylvinylketene] Iron(0) in eight different organic solvents (cyclohexanes, toluene, 1, 2- dichloroethane, 1, 4- dioxane, 2-methyl tetrahydrofuran, tetrahydrofuran, acetonitrile, and dimethylformamide) to yield moderate yields of one regiosiomer product that was extrapolated from a semi-quantitative standard curve measured against biphenyl integral ratios. The reaction was monitored by Gas Chromatography Mass Spectrometry (GC-MS) and products were confirmed by proton, and carbon NMR, and GC-MS. Trimerization products were observed as the major by-products. A second study involved the cycloaddition between prop-2-ynal and tricarbonyl [2-ethoxy-3phenylvinylketene] Iron(0) that yielded moderate yields of one regiosiomer with no trimerization products. The product was confirmed by GC-MS, proton and carbon NMR. Both reactions involved a net [4+2] cycloaddition between alkyne and eta4-iron(0) vinylketene.
590 $a School code: 0198.
650 4 $a Organic chemistry. $3 523952
650 4 $a Chemistry. $3 516420
650 4 $a Analytical chemistry. $3 3168300
690 $a 0490
690 $a 0485
690 $a 0486
710 2 $a Long Island University, The Brooklyn Center. $3 1017735
773 0 $t Masters Abstracts International $g 52-05(E).
790 $a 0198
791 $a M.S.
792 $a 2014
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1525141