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Acronymfinder

What does LDA stand for?

LDA stands for Lithium Diisopropylamide


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Samples in periodicals archive:

Select C(alpha), N-phenylhydrazones were treated with excess lithium diisopropylamide, (LDA), followed by condensation with methyl 2-(aminosulfonyl)benzoate to give Cacylated intermediates that were not isolated, but acid cyclized with aqueous hydrochloric acid to afford new pyrazole-ortho-benzenesulfonamides.
Several commmercially available beta-ketoesters were dilithiated with excess lithium diisopropylamide, (LDA), followed by condensation with methyl 2(aminosulfonyl)benzoate to give intermediates that were not isolated but cyclized to 3substituted 1,2-benzisothiazole-1,1-dioxides (BIDs).
C(alpha), N-Dilithiophenylhydrazones were prepared in excess lithium diisopropylamide, {LDA), and condensed with ethyl oxanilates or ethyl oxamate to give C-acylated intermediates that could be isolated or cyclized directly with aqueous hydrochloric acid/ tetrahydrofuran (THF) to the targeted 1H-pyrazole-5-carbox-amides.
The oximes of select C(alpha)-ketones, such as 2'-acetonaphthone, were dilithiated with lithium diisopropylamide [LDA], and the resulting 1,4-dianion type intermediates were condensed with a variety of electron enriched acetophenones, such as 4'methoxyacetophenone or 3',4'-dimethoxyacetophenone.