4-methylphenyl 2-naphthyl

It may be argued that direct comparison of the barrier of 9-(2-methyl-l-naphthyl)fluorene with that of 9-(2-bromomethyl-6-methylphenyl)fluorene is not fair, because the latter carries a bromine atom. However, the discussion just presented is valid because Saito and Oki (98) found the Arrhenius activation energy for rotation of 9-(2-bromomethyl-l-naphthyl)fluorene (57) for the process ap — sp... 

A higher enantioselectivity is obtained at a lower temperature. The enantioselectivity by 31b/(5,5)-DPEN is higher than that by ( )-10b/(5,5)-DPEN at the same temperature and pressure. The tropos 31b/(5,5)-DPEN catalyst affords (f )-l-(l-naphthyl) ethanol with 92% ee in quantitative yield (entries 3 and 4). 31b/(5,5)-DPEN is also effective for o-methylacetophenone 22a to afford (7 )-l-(l-o-methylphenyl)ethanol quantitatively with 88% ee, higher than 86% ee obtained by ( )-10b/(5,5)-DPEN (entries 5 and 6). 

This procedure illustrates the best way to prepare aryl isocyanides. It is quite general, having been used by Ugi and Meyr e to make the following isocyanides from the corresponding form-amides phenyl (56%), />-tolyl (66%), 2,6-dimethylphenyl (88%), mesityl (80%), o-chlorophenyl (43%), -chlorophenyl (54%), 2-chloro-6-methylphenyl (87%), -methoxyphenyl (64%), p-di-ethylaminophenyl (75%), -nitrophenyl (41%), and 2-naphthyl (50%). Aliphatic isonitriles are generally best prepared by a simpler procedure involving the action of phosphorus oxychloride on an N-alkylformamide in the presence of pyridine.7... 

A wide range of bidentates containing one or more asymmetric phosphorus or arsenic donor atoms is now available due to the exploitation of a resolution technique involving the fractional crystallization of pairs of diastereomeric complexes formed by the chiral bidentates with pal-ladium(II) complexes containing optically active dimethyl(a-methylbenzyl)amine or dimethyl(l-ethyl-a-naphthyl)amine. Indeed, in recent work the two enantiomer pairs of l-(methylphenyl-arsino)-2-(methylphenylphosphino)benzene, (29a) and (29b), have been separated and isolated as optically pure air-stable crystalline solids with [a]o values of 79° (R, R ) and 15.5° (R, S ). 95... 

Photooxidation of parathion also occurred on leaf surfaces (18), together with isomerization and other reactions. Fenitro-thion (j),O-dimethyl 0-3-methyl-4-nitrophenyl phosphorothionate) and other phosphorothionate insecticides behaved similarly (19). Some pesticides do not require external reagents for photodegradation on surfaces carbamate insecticides such as carbaryl (1-naphthyl li-methylcarbamate), aminocarb (4-dimethylamino-3-methylphenyl li-methylcarbamate), and mexacarbate (4-dimethylamino-... 

The-Claisen rearrangement to the ortho position is a first-order reaction,67 68 and the process does not require catalysis by acids and bases. The rearrangement is intramolecular, since rearrangement of mixtures of ethers such as allyl /3-naphthyl ether and cinnamyl phenyl ether,60 or cinnamyl 4-methylphenyl ether and allyl 4-aminophenyl ether,68 yields none of the cross products which would result from an intermolecular reaction. The process is best represented by the cyclic mechanism, in which the following processes take place, with the electronic shifts during reaction indicated by the arrows.23 39 69... 

Bis[4-methylphenyl] ditellurium, bis[4-methoxyphenyl] ditellurium, and bis[4-ethoxy-phenyl] ditellurium, but not diphenyl or bis[2-naphthyl] ditcllurium, reacted with 2-(phenyliodonio)-benzoates producing compounds with two vicinal aryltelluro substituents in the aromatic ring. The reactions are postulated to proceed via the thermally generated singlet benzyne and concerted addition of the diaryl ditellurium compounds. 

SYNS AFTATE CHINOFUNGIN DERMOXIN mJS-DIMETHYLTHIOCARBANILIC ACID-o-2 NAPHTHYL ESTER FOCUSAN FUNGISTOP HI-ALAZIN METHYL (3-METHYLPHENYL)CARBAMOTHIOIC ACID, 0-2-NAPHTHALENYL ESTER NAPHTHIOMATE T o-2-N. PHTHYL m,N-DIMETHYLTHIOCARBANILATE 2-NAPHTHYL N-METHYL-N-(3-TOLYL)THIONO-CARBAMATE PITREX SORGOA SPORILINE TIMOPED TINADERM TOLNAFTATE TOLNAPHTHATE TOLSANIL TONOFTAL... 

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