Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Clemens Krempner"'
Publikováno v:
Molecules, Vol 28, Iss 14, p 5394 (2023)
The new Lewis acid–base adducts of general formula X(nad)B←NC5H4-C5H4N→B(nad)X [nad = 1,8-O2C10H6, X = C6H5 (2c), 3,4,5-F3-C6H2 (2d)] were synthesized in high yields via reactions of 1,8-dihydroxy naphthalene [nadH2] and 4,4′-bipyridine with
Externí odkaz:
https://doaj.org/article/c5a9398ecea549d88509c4d4e7ec6081
Autor:
Suresh Mummadi, Clemens Krempner
Publikováno v:
Molecules, Vol 28, Iss 3, p 1340 (2023)
The development and application of new organoboron reagents as Lewis acids in synthesis and metal-free catalysis have dramatically expanded over the past 20 years. In this context, we will show the recent uses of the simple and relatively weak Lewis
Externí odkaz:
https://doaj.org/article/3b78656171b045f799b6a3fb2ff6e9ea
Publikováno v:
Chemistry – A European Journal. 27:6263-6273
The intramolecular "inverse" frustrated Lewis pairs (FLPs) of general formula 1-BR2 -2-[(Me2 N)2 C=N]-C6 H4 (3-6) [BR2 =BMes2 (3), BC12 H8 , (4), BBN (5), BBNO (6)] were synthesized and structurally characterized by multinuclear NMR spectroscopy and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5dfc91c36d2f091bde233f76b3d85d7
https://doi.org/10.1002/chem.202005143
https://doi.org/10.1002/chem.202005143
Publikováno v:
Dalton Transactions. 50:5044-5049
The BINOL supported 1,3,2-dioxaborepines [C10H12O2BC6F5(THF)] [(R)-1], [C10H12O2BC6F5(OPEt3)] [(R)-3], [C10H12O2BC6F5]2 [(R,R)-2], [C10H12O2B(OPEt3)2]+[B(O2C10H12)2]− [(R)-6], and [C10H12O2B(OSMe2)2]+[B(O2C10H12)2]− [(R)-7] have been pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d8fa6d95ad9bbed38ec956094e3bce3
https://doi.org/10.1039/d1dt00842k
https://doi.org/10.1039/d1dt00842k
Publikováno v:
Chemical Communications. 57:12528-12531
Utilizing an intramolecular frustrated Lewis pair (FLP) decorated with a strongly donating guanidino moiety enabled the formation of a thermally remarkably stable FLP-CO adduct, which at 120 °C underwent CO migration to form an acyl borane. Both com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2ea7363e9fb85b119740ae335f04c90
https://doi.org/10.1039/d1cc05673e
https://doi.org/10.1039/d1cc05673e
Publikováno v:
Catalysis Science & Technology. 11:211-218
The polyhedral oligosilsesquioxane complexes, {[(isobutyl)7Si7O12]ZrOPri·(HOPri)}2 (I), {[(cyclohexyl)7Si7O12]ZrOPri·(HOPri)}2 (II), {[(isobutyl)7Si7O12]HfOPri·(HOPri)}2 (III) and {[(cyclohexyl)7Si7O12]HfOPri·(HOPri)}2 (IV), were synthesized in g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34fb417faf608284240fb399e42e7fde
https://doi.org/10.1039/d0cy01864c
https://doi.org/10.1039/d0cy01864c
Publikováno v:
Organometallics. 39:4307-4311
Stoichiometric and catalytic reactions of terminal alkynes with various FLPs and Lewis acid–base adducts have been investigated. Reactions of phenylacetylene with FLPs composed of the Verkade base ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::093401ca3e4c70637edd1ec14f586bfe
https://doi.org/10.1021/acs.organomet.0c00411
https://doi.org/10.1021/acs.organomet.0c00411
Publikováno v:
Dalton Transactions. 49:4834-4842
The 1,8-naphthalenediolate [1,8-O2C10H8] supported boronic and boric acid esters of general formula X-B(1,8-O2C10H8), where X = C6H5 (1a), C6F5 (2a), 3,4,5-F3-C6H2 (3a), 2,4,6-F3-C6H2 (4a), 2,6-F2-C6H3 (5a), 2,6-Cl2-C6H3 (6a), 2,4,6-Me3-C6H2 (7a), 2,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca736b898fe1ef58878477c8fbbdef60
https://doi.org/10.1039/d0dt00745e
https://doi.org/10.1039/d0dt00745e
Publikováno v:
Chemical communications (Cambridge, England). 57(93)
Utilizing an intramolecular frustrated Lewis pair (FLP) decorated with a strongly donating guanidino moiety enabled the formation of a thermally remarkably stable FLP-CO adduct, which at 120 °C underwent CO migration to form an acyl borane. Both com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::386bd27d15b51de8c28833587304ec32
https://pubmed.ncbi.nlm.nih.gov/34766617
https://pubmed.ncbi.nlm.nih.gov/34766617
Publikováno v:
Organic Letters. 21:6305-6309
A method for the generation of 5-isoxazolidinones with exocyclic phosphonium ylide functionalities via [2+3] cycloaddition of Ph3PCCO and aldonitrones has been developed and applied in the synthesis of 4-alkylidene-5-isoxazolidinones via Wittig olefi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38fcca0e834ddd86cabc72dfa132e789
https://doi.org/10.1021/acs.orglett.9b02192
https://doi.org/10.1021/acs.orglett.9b02192