Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Lithium diorganocopper reagents

How might conjugate addition reactions of lithium diorganocopper reagents be used to synthesize the following compounds ... [Pg.729]

Note that the diorganocopper reaction occurs only with acid chlorides. Carboxylic acids, esters, acid anhydrides, and amides do not react with lithium diorganocopper reagents. [Pg.805]

How could you prepare the following ketones by reaction of an acid chloride with a lithium diorganocopper reagent ... [Pg.806]

Sec. 10.8) formation of lithium diorganocopper reagents (Gilman reagents) from... [Pg.865]

Reaction with a lithium diorganocopper reagent to yield a ketone (Sec. 21.4)... [Pg.866]

Coupling reaction of a lithium diorganocopper reagent with an alkyl halide to yield an alkane (Sec. 10.8)... [Pg.869]

Cuprous iodide, Cul Reacts with organolithiums to yield lithium diorganocopper reagents (Gilman reagents Section 10.8). [Pg.871]

Lithium diorganocopper reagent (Gilman reagent), LiR2Cu Couples with alkyl halides to yield alkanes (Section 10.8). [Pg.873]

Example 15.3 Reactions with Lithium Diorganocopper Reagents... [Pg.618]

Show how to bring about each conversion using a lithium diorganocopper reagent. [Pg.618]

Lithium diorganocopper reagents undergo 1,4-addition to a,)8-unsaturated aldehydes and ketones in a reaction that is closely related to the Michael reaction. Yields are highest with primary all l, allylic, vinyl, and aryl organocopper reagents. [Pg.830]

Propose two syntheses of 4-octanone, each involving conjugate addition of a lithium diorganocopper reagent. [Pg.831]

A lithium diorganocopper reagent adds to the beta carbon of an a,j8-unsaturated aldehyde or ketone. Therefore, locate each carbon beta to the carbonyl group in this target molecule and disconnect at those points. [Pg.831]

Conjugate Addition of Lithium Diorganocopper Reagents (Section 19.8E) In... [Pg.844]

In addition, ketones can be prepared from certain carboxylic acid derivatives, just as aldehydes can. Among the most useful reactions of this type is that between an acid chloride and a lithium diorganocopper reagent, R2CuLi. We ll discuss lithium diorganocopper reagents later in this chapter (Section 14.11) and will look at preparing ketones from acid chlorides in Section 16.4. [Pg.568]

See other pages where Lithium diorganocopper reagents is mentioned: [Pg.728]    [Pg.1304]    [Pg.864]    [Pg.786]    [Pg.728]    [Pg.788]    [Pg.808]    [Pg.728]    [Pg.419]    [Pg.788]    [Pg.830]    [Pg.831]    [Pg.844]    [Pg.591]    [Pg.662]   


SEARCH



Lithium Reagents

© 2024 chempedia.info