Synthesis of 2-ethyl-2-methyl-2,3-dihydro-1H-indole, a new insecticide exhibiting juvenile hormone activity
摘要:
Catalytic hydroamination of isoprene gave N-(1,2-dimethylprop-2-en-1-yl)aniline in a preparative yield. By heating at 260 degrees C the product was converted into 2-ethyl-2-methyl-2,3-dihydro-1H-indole, a new ecologically safe insecticide exhibiting a juvenile hormone activity. Its insecticide properties against Tenebrio Molitor L. chrysalises were estimated at 7.5 points according to the Schmialek 9-point scale.
Ruthenium-Catalyzed Intermolecular Coupling Reactions of Arylamines with Ethylene and 1,3-Dienes: Mechanistic Insight on Hydroamination vs ortho-C−H Bond Activation
摘要:
The cationic ruthenium complex [(PCy3)(2)(CO)(CI)Ru=CHCH=C(CHC3)(2)]+BF4- was found to be an effective catalyst for the coupling reaction of aniline and ethylene to form a similar to 1:1 ratio of N-ethylaniline and 2-methylquinoline products. The analogous reaction with 1,3-dienes resulted in the preferential formation of Markovnikov addition products. The normal isotope effect of k(NH)/k(ND) = 2.2 (aniline and aniline-d(7) at 80 degrees C) and the Hammett p = -0.43 (correlation of para-substituted P-X-C6H4NH2) suggest an N-H bond activation rate-limiting step for the catalytic reaction.
Palladium(II)-catalyzed Amination of Isoprene with Aniline
作者:E. A. Petrushkina、N. E. Mysova、A. V. Orlinkov
DOI:10.1007/s11176-005-0344-5
日期:2005.6
reaction of isoprene with aniline, catalyzed by the Pd(acac)2-(RO)3P-CF3CO2H system, 1 : 4 : 4 [R = Me, Et; acac = (CH3CO)2CH], in MeCN provides N -(3-methylbut-2-en-1-yl)aniline with a high selectivity (up to 84%) and a nearly quantitative yield (75%). At 1 : 4 : 20 and 1 : 4 : 40 molar component ratios in the catalytic system, up to 28–31% of N,N -(2,3-dimethylprop-2-en-1-yl)aniline is formed. Telomeric
Reaction between isoprene and aniline on complex palladium catalysts
作者:E. A. Petrushkina、L. I. Zakharkin
DOI:10.1007/bf00864336
日期:1992.8
Isoprene and aniline have been reacted on the catalytic system Pd(acac)2-Ph3P to form a mixture of isomeric telomers: N-(dimethyloctadien-2,7-yl-1)anilines and N-(dimethyloctadien-1,7-yl-3)anilines but on the catalytic system Pd(acac)2-Ph3P-CF3COOH the main product is a mixture of N-(methylbuten-2-yl)aniline adducts. The reaction between N-methylaniline and isoprene on the latter catalyst also gives a mixture of N-methyl and N-(methylbuten-2-yl)aniline adducts.
ETEMAD-MOGHADAM G.; BENHAMOU M. C.; SPEZIALE V.; LATTES A., NOUV. J. CHIM., 1980, 4, NO 12, 727-730,
作者:ETEMAD-MOGHADAM G.、 BENHAMOU M. C.、 SPEZIALE V.、 LATTES A.