disubstituted In A Sentence
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- The use of stabilized ylides for forming 1,2-( E)- and 1,2-( Z)-disubstituted alkenes and trisubstituted alkenes with high stereocontrol.
- The compound requires eight steps to synthesize " in vitro " which requires the formation of a 17 membered ring with a trans-2, 6-disubstituted piperidine ring.
- However, in plants, 1-aminocyclopropane-1-carboxylic acid is a small disubstituted cyclic amino acid that is a key intermediate in the production of the plant hormone ethylene.
- Sulfur compound types of mercaptan, thioether, and tetrahydrothiophene in gasoline were easily be removed by adsorption desulfurization, but disubstituted thiophene was difficult.
- The enantioselectivity for trans 1,2 disubstituted olefins is better than that for mono substituted olefins.
- "' 1-Aminocyclopropane-1-carboxylic acid "'( "'ACC "') is a disubstituted cyclic ?-amino acid in which a three-membered cyclopropane ring is fused to the C ? atom of the amino acid.
- In this reaction the proportions of aldehyde and acetoacetic ester may be interchanged and ay disubstituted pyridines are then obtained.
- Monosubstituted phenyl groups ( that is, disubstituted benzenes ) are associated with electrophilic aromatic substitution reactions and the products follow the arene substitution pattern.
- The configuration of transition state is like as a trans disubstituted three cycle.
- In all cases, a 1, 4-disubstituted-2, 3, 5, 6-tetrafluorobenzene derivative shows up.
- Disubstituted pyridazines liquid crystals - synthesis , structure and effect of rigid core on the mesomorphism.
- FOR a disubstituted complex, MA4B2, the planar arrangement gives three isomers, the familiar ortho, meta, and para arrangements of organic chemistry.
- Recent studies showed that the use of N-heterocyclic carbene with Ni can be useful for the selective preparations of functionalized geminal olefins or 1, 1-disubstituted alkenes.
- The ketimine is then subjected to the Bucherer-Bergs reagents, resulting in a 5, 5'- disubstituted hydantoin "'3 " '.
- The enantio-selective addition of 3-substituted oxindole derivatives to different electrophiles gives access to chiral 3, 3-disubstituted oxindole derivatives.
- Soc. chim., 1904 [31, 31, p.1306) prepares aldehydes by the gradual addition of disubstituted formamides (dissolved in anhydrous ether) to magnesium alkyl haloids, the best yields being obtained by th
- The n precursor 3 with its stereocenters in the C ring is stereoselectively synthesized from the cis-disubstituted cyclohexene 4.
- A disubstituted phenyl compound ( trisubstituted benzene ) may be, for example, 1, 3, 5-trisubstituted, or 1, 2, 3-trisubstituted.
- Darzens (Comptes Rendus, 1904, 139, p. 1214) prepares esters of disubstituted glycidic acids, by condensing the corresponding ketone with monochloracetic ester, in the presence of sodium ethylate.
- Anhydrous hydrogen chloride reacts preferentially at the disubstituted alkene, whereas epoxidation with mCPBA occurs at the trisubstituted alkene.
- In practice, terminal and disubstituted alkenes are good substrates, but more hindered alkenes are slower to hydrogenate.
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