Lithium Perchlorate In Diethyl Ether Research Articles

Lithium catalyzed hetero Diels-Alder reactions cyclocondensation of N-protected α-amino aldehydes with 1-methoxy-3- tert-butyldimethylsilyloxybutadiene in the presence of lithium perchlorate

Lithium perchlorate in diethyl ether catalyzes the cyclocondensation of N-BOC protected α-amino aldehydes with 1-methoxy-3- tert-butyldimethylsilyloxybutadiene providing, after exposure to acid, dihydropyrones possessing the threo configuration.

A chemical, spectroscopic, and theoretical assessment of the Lewis acidity of lithium perchlorate in diethyl ether

Moderate diastereoselectivity is observed in the reaction of cyclopentadiene with dimethyl maleate and optically active dimenthyl fumarate in LiClO 4 /diethyl ether. Moderate regioselectivity is also seen in the reaction of isoprene and methyl acrylate in the same medium. NMR experiments and MNDO calculations, in conjunction with published work on Li + in the gas phase, demonstrate that the strong, intrinsic Lewis acidity of Li + is moderated in ether by complexation to the solvent and the counterion

Synthesis of aromatic amines from electron-rich arenes and bis(2,2,2-trichloroethyl) azodicarboxylate

Electron-rich arenes react with bis(2,2,2-trichloroethyl) azodicarboxylate in 3 M lithium perchlorate-diethylether or acetone solution to produce para-substituted aryl hydrazides in high yields. The corresponding aromatic amines are readily obtained by reducing the hydrazides with zinc in acetic acid.

Brønsted acid catalysed electrophilic substitution of indole by allylic alcohols in lithium perchlorate–diethyl ether: application to the total synthesis of yuehchukene

A novel carbon–carbon bond-forming reaction between indole and ββ-disubstituted allylic alcohols in lithium perchlorate–diethyl ether containing a catalytic amount of a Bronsted acid is described; the reaction has been applied to a total synthesis of yuehchukene.

Direct substitution of secondary allylic alcohols with O-silylated ketene acetals in 3.0 M lithium perchlorate-diethyl ether - An alternative to the [1,3] sigmatropic rearrangement of allyl vinyl ethers

Allylic alcohols of type 1 undergo unprecedented substitution with O-silylated ketene acetals in 3.0 M lithium perchlorate-diethyl ether.

Chelation controlled addition of allylstannanes to aldehydes in lithium perchlorate-diethyl ether

α-Alkoxy aldehydes undergo chelation controlled addition of allylstannanes with high diastereoselectivity in the presence of 5.0 M lithium perchlorate in diethyl ether at ambient temperature and pressure.

Total synthesis of (±)-sesbanimide A and B

The total synthesis of sesbanimide A (1) and B (2) is reported which features (a) the reaction of cyclopentadiene with glyoxylic acid leading to the useful bicyclic lactone building block 3 and (b) the use of 2.5 mol dm–3 lithium perchlorate in diethyl ether to promote the conjugate addition of 1-methoxy-1-(tert-butyldimethylsiloxy)ethene to unsaturated lactone 11.

Solution structure and dynamics of a mixed tetramer of lithium 3,5-dimethylphenolate and lithium perchlorate in diethyl ether and some related systems

Solution structure and dynamics of a mixed tetramer of lithium 3,5-dimethylphenolate and lithium perchlorate in diethyl ether and some related systems

The lithium perchlorate-diethyl ether rate acceleration of the Diels-Alder reaction: Lewis acid catalysis by lithium ion

We present evidence that the rate acceleration of the Diels-Alder reaction in lithium perchlorate-diethyl ether may be due to Lewis acid catalysis, with lithium ion functioning as the Lewis acid

Dramatic rate accelerations of Diels-Alder reactions in 5 M lithium perchlorate-diethyl ether: the cantharidin problem reexamined

Dramatic rate accelerations of Diels-Alder reactions in 5 M lithium perchlorate-diethyl ether: the cantharidin problem reexamined

Electrostatic catalysis by ionic aggregates. 6. Modulation of proton-transfer equilibria by lithium perchlorate-diethyl ether clusters

Electrostatic catalysis by ionic aggregates. 6. Modulation of proton-transfer equilibria by lithium perchlorate-diethyl ether clusters

Electrostatic catalysis by ionic aggregates. 5. Aminolysis reaction of p-nitrophenyl acetate with imidazole and the proton transfer from p-nitrophenol in lithium perchlorate-diethyl ether solutions

Electrostatic catalysis by ionic aggregates. 5. Aminolysis reaction of p-nitrophenyl acetate with imidazole and the proton transfer from p-nitrophenol in lithium perchlorate-diethyl ether solutions

Electrostatic catalysis by ionic aggregates. III. Isomerization of (-)-menthone by hydrogen chloride and perchloric acid in lithium perchlorate-diethyl ether solutions

Electrostatic catalysis by ionic aggregates. III. Isomerization of (-)-menthone by hydrogen chloride and perchloric acid in lithium perchlorate-diethyl ether solutions

Electrostatic catalysis by ionic aggregates. II. Reversible elimination of hydrogen chloride from tert-butyl chloride and the rearrangement of 1-phenylallyl chloride in lithium perchlorate-diethyl ether solutions

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrostatic catalysis by ionic aggregates. II. Reversible elimination of hydrogen chloride from tert-butyl chloride and the rearrangement of 1-phenylallyl chloride in lithium perchlorate-diethyl ether solutionsYeshayau Pocker and Richard F. BuchholzCite this: J. Am. Chem. Soc. 1970, 92, 13, 4033–4038Publication Date (Print):July 1, 1970Publication History Published online1 May 2002Published inissue 1 July 1970https://doi.org/10.1021/ja00716a034RIGHTS & PERMISSIONSArticle Views235Altmetric-Citations30LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (689 KB) Get e-Alerts Get e-Alerts

Electrostatic catalysis of ionic aggregates. I. Ionization and dissociation of trityl chloride and hydrogen chloride in lithium perchlorate-diethyl ether solutions

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrostatic catalysis of ionic aggregates. I. Ionization and dissociation of trityl chloride and hydrogen chloride in lithium perchlorate-diethyl ether solutionsYeshayau Pocker and Richard F. BuchholzCite this: J. Am. Chem. Soc. 1970, 92, 7, 2075–2084Publication Date (Print):April 1, 1970Publication History Published online1 May 2002Published inissue 1 April 1970https://doi.org/10.1021/ja00710a047RIGHTS & PERMISSIONSArticle Views297Altmetric-Citations57LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (1 MB) Get e-Alerts Get e-Alerts