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0,7-Acetylenecarboxylic acid esters

Methyl acetylenecarboxylate (41 R = H, R = Me) reacts with 2-mercaptocyclohexanone in the presence of a catalytic quantity of potassium er -butoxide to give methyl 4,5,6,7-tetr ahy dr obenzo [6] -thiophene-3-carboxylate (42 R = H, R = Me), together with a mixture of the cis and trans isomers of the adduct (43 R = H, R = Me).257 Substituted acetylenecarboxylic acid esters (41 R=Me or Ph, R = Et) behave analogously only the cis adducts (43) are formed in these cases. [Pg.210]

Hydroxycarboxylic acid esters (s. a. / -Hydroxy-y,6--acetylenecarboxylic acid esters)... [Pg.235]

Acetylenecarboxylic acid ester syntheses 12, 727 Acetylenecarboxylic acids (s. a. [Pg.283]

Reactions of Acetylenecarboxylic Acids and Their Esters with Nitrogen-Containing Heterocyclic Compounds... [Pg.431]

See other pages where 0,7-Acetylenecarboxylic acid esters is mentioned: [Pg.596]    [Pg.727]    [Pg.596]    [Pg.727]    [Pg.100]    [Pg.114]    [Pg.266]    [Pg.392]    [Pg.154]    [Pg.162]    [Pg.208]    [Pg.238]    [Pg.291]    [Pg.487]    [Pg.79]    [Pg.171]    [Pg.254]    [Pg.303]    [Pg.246]    [Pg.246]    [Pg.264]    [Pg.273]    [Pg.242]    [Pg.263]    [Pg.528]    [Pg.286]    [Pg.436]   


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A,p-Acetylenecarboxylic acid esters

Acetylenecarboxylate

Acetylenecarboxylates

Acetylenecarboxylic acids

Acetylenecarboxylic acids and esters

Acetylenecarboxylic acids and esters compounds

Acetylenecarboxylic acids and esters, reactions

Acetylenecarboxylic acids and esters, reactions with

Acetylenecarboxylic acids and esters, reactions with N-heterocyclic compounds

N-Heterocyclic compounds reaction of acetylenecarboxylic acids and esters with

Reaction of acetylenecarboxylic acids and esters with

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