126405-06-9

Upstream product

• 22815-63-0 N-^t-butyl benzylcarbamate 
• 917-54-4 methyllithium 
• 939-52-6 4-chloro-1-phenylbutan-1-one 
• 676-58-4 methylmagnesium chloride 
• 501-53-1 benzyl chloroformate 
• 126404-83-9 tert-Butyl-carbamic acid 1-phenyl-ethyl ester 
• 126405-01-4 tert-Butyl-carbamic acid 4-chloro-1-methyl-1-phenyl-butyl ester 

Relevant academic research and scientific papers

Water opens the door to organolithiums and Grignard reagents: Exploring and comparing the reactivity of highly polar organometallic compounds in unconventional reaction media towards the synthesis of tetrahydrofurans

It has always been a firm conviction of the scientific community that the employment of both anhydrous conditions and water-free reaction media is required for the successful handling of organometallic compounds with highly polarised metal-carbon bonds. Herein, we describe how, under heterogeneous conditions, Grignard and organolithium reagents can smoothly undergo nucleophilic additions to γ-chloroketones, on the way to 2,2-disubstituted tetrahydrofurans, "on water", competitively with protonolysis, under batch conditions, at room temperature and under air. The reactivity of the above organometallic reagents has also been investigated in conventional anhydrous organic solvents and in bio-based eutectic and low melting mixtures for comparison. The scope and limitations of this kind of reaction are discussed.

CARBAMATE DIANIONS: GENERATION AND ALKYLATION OF α-OXO CARBANIONS

Dianions from simple N-t-butyl benzylic-type carbamates are readily formed with alkyllithium bases and undergo alkylation with a variety of electrophiles.Both secondary and tertiary α-oxo carbanions are easily accessible.DIBAL cleavage of the c