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Fumaric acid methyl ester

Fluoioboric acid, 57, III 2 Fluoro-2-methylbutane, 57, 7 3 1-Fluoiooctane, 57, 73 1-Fluoio-2-phenylethane, 57, 73 Formaldehyde 57,95,103 Formalin, 55, 45 Formamide 57, 103 Formamide, AVV-dimethyl-, 55, 58 Formic acid, 57, 95, 103 Free radical cyclization, 55, 57 Fukmone, 58, 162, 163 Fumaric acid, 58, 167 Fumaric acid, methyl ester, 56, 63 Furan, 58, 18, 22, 24... [Pg.185]

A-Phenylthiomethylpipecolic acid methyl ester afforded with methyl cin-namate and a mixture of two regioisomers 65 and 66 (84TL1579). Pipecolic acid and diethyl fumarate or maleinate gave three isomers (85TL2775). [Pg.40]

Methylmaleic acid to methyl fumaric acid Dimethylmaleic ester to dimethylfumaric ester Vinyl allyl ether to allylacetaldehyde Cyclopropane to propylene... [Pg.152]

In the THM-GC profile of the printing ink resin,dimethyl fumarate (peak 6) is detected, suggesting the presence of maleic or fumaric acid. Pentaerythritol is indicated by the presence of the tetra- and trimethyl ethers (peaks 7 and 8, respectively). Tertiary butyl phenol and methyl and dimethyl tertiary butyl phenols are detected as their methyl ethers (peaks 9, 10, and 11, respectively). Rosin acid methyl esters are detected with dehydroabietic acid and abietic acid methyl esters predominating (peaks 15 and 16, respectively). This resin is therefore diagnosed... [Pg.195]

Pyrroles react at free a- or -positions with acetylenedicarboxylic acid or the methyl ester yielding mixtures of the corresponding maleic and fumaric acid derivatives. Protons are readily available to satisfy... [Pg.127]

Fumaric acid to L-aspartic acid, L-aspartic acid to L-alanine Enzymatic resolution of methyl ester of (+/-) trans 4- methoxy-... [Pg.158]

Figure 25. Trace enantiomer analysis of L-aspartic acid (obtained by enzymatic amination of fumarate with L-aspartase and determined as the A -trifluoroacetyl-O-methyl ester) on i.-Chirasil-Val31 [20 mx0.25 mm (i.d.) glass capillary column, 90 CC, 0.4 bar hydrogen] with detection by GLC MS selected ion monitoring (mj 198.1) and multiscanning chromatography (MSC, 8 scans)186. Figure 25. Trace enantiomer analysis of L-aspartic acid (obtained by enzymatic amination of fumarate with L-aspartase and determined as the A -trifluoroacetyl-O-methyl ester) on i.-Chirasil-Val31 [20 mx0.25 mm (i.d.) glass capillary column, 90 CC, 0.4 bar hydrogen] with detection by GLC MS selected ion monitoring (mj 198.1) and multiscanning chromatography (MSC, 8 scans)186.
Diels-Alder reactions of the type shown in Table 15.1, that is, Diels-Alder reactions between electron-poor dienophiles and electron-rich dienes, are referred to as Diels-Alder reactions with normal electron demand. The overwhelming majority of known Diels-Alder reactions exhibit such a normal electron demand. Typical dienophiles include acrolein, methyl vinyl ketone, acrylic acid esters, acrylonitrile, fumaric acid esters (irans-butenedioic... [Pg.661]

Recently, Piancatelli has employed PhSeCl in the presence of zinc chloride to effect the stereospecific chloroselenenylation of electron-poor olefins such as ethyl maleate and fumarate, methyl acrylate and methyl vinyl ketone [52]. The addition occured with good regioselectivity also in the cases of the methyl esters of acrylic, crotonic and cynnamic acids 62 (Scheme 10). In the latter cases, if the... [Pg.21]

Bennasar extended his research on 2- and 3-indolylacyl radicals to intramolecular cyclizations to yield 2,3-fused indoles [112], Under nomeductive conditions (n-Bu6Sn2, hv), radical 201 underwent a cascade addition-oxidative cyclization sequence with a number of alkene acceptors including dimethyl fumarate (45%), methyl 1-cyclohexenecarboxylate (53%), methyl crotonate (71%), vinyl sulfone (22%), and the a,p-unsaturated lactam ester, 2-oxo-5,6-dihydro-2H-pyridine-l,3-dicarboxylic acid dibenzyl ester (41%) to form cyclopenta[h]indol-3-ones 202. Reaction of 201 with acrylonitrile and methyl acrylate, however, generated cyclo-hepta[h]indoles, the products of bis-addition-cyclization sequences. [Pg.269]

Amino-acid analogs and uncommon L-amino acids W-acetyl-aspartate, W-acetyl-serine, oi-amino-n-butyrate, 3-aminoisobutyrate, aspartate ethyl or methyl ester, citrulline, cysteate, fumarate, glutathione, homoserine, erythro- and threo-p-hydroxyaspartate, isoasparagine, isoserine, malate, a- and p-methylaspartate, methylserine, phenol, serine amide, serine methyl ester, succinate [498, 747]... [Pg.101]

Dialkyl cobalt complexes CocpR2(PPh3) react with methyl esters of maleic and fumaric acids to furnish compounds of the formula [Cocp(MeOOCCH = CHCOOMe) (PPh3)]. Chlorides of unsaturated carboxylic acids react with NaCo(CO)4 in the manner shown in scheme (6.68). The stability of complexes of the type... [Pg.363]

Fig. 3.1 Chromatogram of extracted acids as their methyl esters prepared using boron trifluoride/methanol separated on a 3 m (0.0025 m i.d.) stainless-steel column packed with 5 per cent di(ethylene glycol) adipate on Chromosorb W (AW, DMCS, 100-120 mesh) using temperature programming from 60°C to 185°C at 7°C min, with an initial isothermal delay of 6 min and a final delay at 185°C until elution of trimethyl citrate. Peak identifications are 1, position of methyl pyruvate 2, methyl lactate 3, methyl-2,2-dimethoxypropionate 4, dimethyl fumarate 5, dimethyl succinate 6, methyl laurate (internal standard) 7, dimethyl malate 8, trimethyl citrate. (Redrawn with modifications from Hautala and Weaver, 1969)... Fig. 3.1 Chromatogram of extracted acids as their methyl esters prepared using boron trifluoride/methanol separated on a 3 m (0.0025 m i.d.) stainless-steel column packed with 5 per cent di(ethylene glycol) adipate on Chromosorb W (AW, DMCS, 100-120 mesh) using temperature programming from 60°C to 185°C at 7°C min, with an initial isothermal delay of 6 min and a final delay at 185°C until elution of trimethyl citrate. Peak identifications are 1, position of methyl pyruvate 2, methyl lactate 3, methyl-2,2-dimethoxypropionate 4, dimethyl fumarate 5, dimethyl succinate 6, methyl laurate (internal standard) 7, dimethyl malate 8, trimethyl citrate. (Redrawn with modifications from Hautala and Weaver, 1969)...
See other pages where Fumaric acid methyl ester is mentioned: [Pg.264]    [Pg.553]    [Pg.129]    [Pg.960]    [Pg.736]    [Pg.899]    [Pg.553]    [Pg.113]    [Pg.872]    [Pg.899]    [Pg.154]    [Pg.358]    [Pg.256]    [Pg.491]    [Pg.553]    [Pg.246]    [Pg.588]    [Pg.671]    [Pg.95]    [Pg.251]    [Pg.861]    [Pg.30]    [Pg.65]    [Pg.66]    [Pg.23]    [Pg.210]    [Pg.87]    [Pg.79]   
See also in sourсe #XX -- [ Pg.56 , Pg.63 ]



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Acids fumar

Fumaric acid

Fumaric ester

Methyl fumarate

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