Reference

Reactions of lithiated allenes with isothiocyanates: First example of hydrolysis of 2,3-dihydropyridines as a novel synthetic route to 5,6-dihydropyridin-2(1H)-ones

All Rights Reserved. Reactions of lithiated allenes with isothiocyanates: First example of hydrolysis of 2,3-dihydropyridines as a novel synthetic route to 5,6-dihydropyridin-2(1H)-ones. Nedolya, N. A.; Albanov, A. I.; Klyba, L. V.; Zhanchipova, E. R. 2253-73-8 and 918135-80-5 are also in the experiment. ( Favorskii Irkutsk Institute of Chemistry, Siberian Division, Russian Academy of Sciences, Irkutsk 664033, Russia). Russian Journal of Organic Chemistry, 42(3), 455-457 (English) 2006 Pleiades Publishing, Inc. CODEN: RJOCEQ. ISSN: 1070-4280. DOCUMENT TYPE: Journal CA Section: 27 (Heterocyclic Compounds (One Hetero Atom)) Reaction of methoxyallene with Me2CHN:C:S and MeI yielded Me2CHN:C(SMe)C(OMe):C:CH2 which is converted into 3-methoxy-6,6-dimethyl-5,6-dihydropyridin-2(1H)-one via electrocyclization and subsequent hydrolysis. .

Kinetics of the reaction of alkyl isothiocyanates with diphenylphosphinic hydrazide in benzene

Kinetics of the reaction of alkyl isothiocyanates with diphenylphosphinic hydrazide in benzene. Yanchuk, N. I. (Ternopol'sk. Gos. Pedagog. Inst., Ternopol, Russia). Zhurnal Obshchei Khimii, 66(9), 1473-1478 (Russian) 1996 Nauka. CODEN: ZOKHA4. ISSN: 0044-460X.In this article, certain chemicals are used. Some of their cas registry numbers are 2253-73-8 and 556-61-6 DOCUMENT TYPE: Journal CA Section: 29 (Organometallic and Organometalloidal Compounds) Section cross-reference(s): 22 Kinetics of the carbamoylation reaction of RNCS (R = Me, Et, Pr, Me2CH, Bu, Me3C, cyclohexyl) with Ph2P(O)NHNH2 in C6H6 are reported. Inductive and steric effects of the alkyl substituents in RNCS on the rate of nucleophilic addn. of Ph2P(O)NHNH2 in C6H6 at 298-328 K were quant. evaluated based on rs anal. using the Taft two-parameter correlation equation. The detg. contribution of steric effects was shown. In this reaction series an isokinetic relationship is obsd. with an enthalpic-type control and an isokinetic temp. of 758 ± 45 K. The reactions take place by a consistent mechanism via a transition state involving proton transfer. .