Synthesis of α-diones and α-diimines by regioselective α-alkylation of 2,3-alkanediimines
✍ Scribed by Norbert De Kimpe; Luc D'Hondt; Elena Stanoeva
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- French
- Weight
- 223 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
Reaction of either decafluorobenzil or perfluorobiacetyl with two equivalents of Li[N(SiMe3)2], followed by quenching with C1SiMe3, provides N,N'-bis(trimethylsilyi)-1,2-bis(pentafluorophenyl)ethanediimine 1 and N,N'bis(trimethylsilyl)-1,1,1,4,4,4-hexafluoro-2,3-butanediimine 2, respectively. These
AbstractÐA convenient synthesis of a-diones and their monoprotected acetals, i.e. a-ketoacetals, was developed by mercury induced solvolysis of regiospeci®cally formed a-chloro-a-(alkylthio)ketones. Analogously, a-alkoxy-a-sulfenylated ketones were formed when reacting a-chloro-a-sulfenylated ketone
## Abstract The α‐methoxyketones are prepared via deprotonation of the starting propylidene amine (I) with LDA, followed by reaction with alkyl halides and hydrolysis of the imino functionality.
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
## Abstract Alkylation of the 1,4‐diaza‐1,3‐butadiene __t__‐BuN=CH‐CH=N __t__‐Bu (__t__‐BuDAB) by functionally substituted diorganozinc compounds Zn[(CHR^1^XCH~2~)~__n__~XR^2^]~2~ (__n__ = 1–3, R^1^ = H, Me, XR^2^ = OMe, OBn, SEt, NMe~2~, COOEt) occurs regioselectively. Alkylation occurs at the nit