NMR study of mono- and dilithium derivatives of alkyl and arylstannanesSpringer Science and Business Media LLC - Tập 53 - Trang 2327-2329 - 2004
P. A. Chugunov, N. A. Troitskii, K. S. Nosov, M. P. Egorov, O. M. Nefedov
Element-centered mono- and dianions of alkyl- and arylstannanes were studied by NMR spectroscopy. The 13C and 119Sn NMR chemical shifts for the dianions R2SnLi2 (R = Ph, Et) were measured for the first time.
Synthesis of N-vinyl derivatives of 2-methyl- and 4(5)-methylimidazolesSpringer Science and Business Media LLC - Tập 36 - Trang 1973-1975 - 1987
T. N. Mamashvili, N. A. Keiko, I. D. Kalikhman, E. S. Domnina, N. P. Glazkova, M. G. Voronkov
The reaction of 2-methyl and 4(5)-methylimidazoles with acetylene in the presence of Gu2Cl2 leads to the corresponding N-vinyl derivatives. 1-Vinyl-4(5)-methylimidazole is formed as a mixture of two isomers differing in the position of the methyl group.
Bromination of terphenylsSpringer Science and Business Media LLC - Tập 20 - Trang 2695-2696 - 1971
S. V. Zakharova, E. P. Kaplan
A new synthesis of spiro-fused 1,4-benzothiazinesSpringer Science and Business Media LLC - - 2001
A. V. Lesin, O. Ya. Borbulevych, S. V. Kurbatov, A. E. Ruzhnikov, M. Yu. Antipin, L. P. Olekhnovich
A new preparative procedure was developed for the synthesis of spiro-fused 1,4-benzothiazines by thermal heterocyclization of S-benzyl and S-phenacyl derivatives of o-indothiophenol.