Results 1 to 10 of about 4,166 (169)
Rearrangement of beta,gamma-unsaturated esters with thallium trinitrate: synthesis of indans bearing a beta-keto ester moiety [PDF]
Journal of the Brazilian Chemical Society, 2006 The rearrangement of beta,gamma-unsaturated esters, such as 2-(3,4-dihydronaphthalen-1-yl)-propionic acid ethyl ester, with thallium trinitrate (TTN) in acetic acid leads to 3-indan-1-yl-2-methyl-3-oxo-propionic acid ethyl ester in good yield, through a ...
Silva Jr. Luiz F. +2 more
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ACS Omega, 2019 The chiral molecular structures of four different substituted indans, namely, (S)-1-methylindan, (R)-1-methylindan-1-d, (R)-1-aminoindan, and (S)-1-indanol, were investigated using experimental vibrational absorption and vibrational circular dichroism ...
Jordan L. Johnson, Prasad L. Polavarapu
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HERBICIDAL PROPERTIES OF SUBSTITUTED INDANS [PDF]
, 1969 The mixed isomers 1,1-dimethyl-4,6-diisopropyl-5-indanyl ethyl ketone and 1,1-dimethyl-4,6-diisopropyl-7-indanyl ethyl ketone (substituted indans) were assessed for their herbicidal properties under field, greenhouse, and growth chamber conditions. While
Richard Frank
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Química Nova, 2005 The indan ring system is present in several compounds with important pharmacological properties. In this account recent examples of selected methods (Friedel-Crafts acylation, cycloaddition reactions, ring contraction, cyclization and resolution) for the
Helena M. C. Ferraz +3 more
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Angewandte Chemie, EarlyView.Aziridination of alkenes is an important route to chiral nitrogen‐containing building blocks. We report that carbamate‐functionalized allylic alcohols undergo highly enantioselective aziridination using achiral dimeric Rh complexes ion‐paired with cinchona alkaloid‐derived chiral cations.
Arthur R. Lit +4 more
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Nouveaux corps odorants dans Ie domaine des muscs polycycliques
CHIMIA, 1992 Polyalkyl-tetralins and -indans are well known as starting materials for polycyclic musks obtained by Friedel-Crafts acylation. If, instead, such hydrocarbons are subjected to benzylic (electrochemical) oxidation, new musks are obtained.
Josiane Baudin +2 more
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Hochgradig enantioselektive Organokatalyse mit zweizähnigen Halogenbrückendonoren
Angewandte Chemie, EarlyView.In einer Mukaiyama‐Aldol‐Modellreaktion mit allgemeinen Substraten wurden hohe Enantioselektivitäten mit einem modifizierbaren, bidentaten Iod(I)‐basierten Halogenbrücken‐Organokatalysator erreicht. Die entscheidende Rolle der Halogenbrücken wurde durch das schlechte Abschneiden des entsprechenden Wasserstoffbrückendonors und durch DFT‐Berechnungen ...
Julian Wolf +6 more
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N‐Insertion of Diazonium Salts Into Ketone Derivatives
Angewandte Chemie International Edition, EarlyView.Diazonium salts insert into ketones and their silyl enol ethers through a sequence of α‐azenylation and ring expansion via an N‐iminoaziridinium species. Coupled with an efficient N‐N bond cleavage, this protocol offers a mild alternative to Beckmann rearrangements and a powerful tool for skeletal editing of ketones.
Mohammed Anif Pasha +3 more
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Highly Enantioselective Organocatalysis with Bidentate Halogen Bond Donors
Angewandte Chemie International Edition, EarlyView.In a model Mukaiyama aldol reaction with unbiased substrates, high enantioselectivity was achieved with a modifiable bidentate iodine(I)‐based halogen bonding organocatalyst. The crucial role of halogen bonding was confirmed by the low performance of the corresponding hydrogen bond donor and via DFT calculations.
Julian Wolf +6 more
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Journal of the Brazilian Chemical Society, 2001 The reaction of a series of 1-tetralones with thallium trinitrate supported on Montmorillonite K-10 clay led to products of ring contraction (methyl indan-1-carboxylates) and/or alpha-oxidation (2-methoxy-1-tetralones), in variable yields.
Ferraz Helena M. C. +3 more
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