22752-55-2Relevant academic research and scientific papers
CARBON-CARBON BOND FORMATION AND KETENIMINE SYNTHESIS FROM N-PHENYL IMIDOTHIOESTERS.
Lage, Nadia,Masson, Serge,Thuillier, Andre
, p. 141 - 144 (2007/10/02)
Methyl N-phenyl ethanimidothioate 1 and its α-silylated homologue 2 are metallated into lithiated enaminates which can be regioselectively monoalkylated at -78 deg C on the α-carbon atom.Imidothioester 2, treated at higher temperatures by 2 equivalents of BuLi, leads, after alkylation or hydrolysis, to stable silylated N-phenyl ketenimines.Formation of ketenimines are also observed by flash thermolysis of 2 or of the silylated S,N-ketene acetal 10.
Reaction of α,β-Unsaturated Imidates with Grignard Reagents Leading to 2-Alkyl 1,3-Diimines
Inoue, Seiichi,Suzuki, Osamu,Sato, Kikumasa
, p. 1773 - 1774 (2007/10/02)
Methyl N-phenylacrylimidate (1a) reacted with alkyl- and aryl-magnesium bromides in ether at O deg C to give 2-alkyl 1,3-diketones (3a) in a good yield after aqueous work-up; methyl N-phenylcrotonimidate (1b) and N-phenylcinnamimidate (1c) with alkylmagnesium bromides furnished analogous 1,3-diketones (3) as the major products after hydrolysis of the corresponding stable diimines (2).
Selectivity in Ketenimine-Thioketone Cycloadditions. 1. 1,4- and 1,2-Addition Pathways and the Synthesis of 4H-3,1-Benzothiazines, 2-Iminothietanes, and Thioacrylamides
Dondoni, Alessandro,Battaglia, Arturo,Giorgianni, Patrizia
, p. 3766 - 3773 (2007/10/02)
The cycloadditions of thiobenzophenones to ketenimines take place at different sites of the cumulene depending on the extent of substitution and the nature of the substituents.C,C-Disubstituted ketenimines whose nitrogen bears an alkyl or an ortho,ortho'-
