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1.
Dalton Trans ; 52(28): 9639-9645, 2023 Jul 18.
Article in English | MEDLINE | ID: mdl-37377440

ABSTRACT

Reactions of tris(ortho-carboranyl)borane with Lewis bases reveals only small bases bind. The tremendous bulk and Lewis acidity is leveraged in frustrated Lewis pair Si-H cleavage with a wider range of Lewis bases and greater efficacy than B(C6F5)3.

2.
ACS Cent Sci ; 8(7): 855-863, 2022 Jul 27.
Article in English | MEDLINE | ID: mdl-35912338

ABSTRACT

Based on statistical analysis of CHN combustion results of 18 international service providers, it is determined that the ±0.4% deviation most commonly required by chemistry journals is not justified.

3.
Chem Commun (Camb) ; 58(52): 7249-7252, 2022 Jun 28.
Article in English | MEDLINE | ID: mdl-35670109

ABSTRACT

Lower-rim Cinchona anchored calix[4]arene cationic catalysts were developed for asymmetric Michael addition of acetylacetone to ß-nitrostyrenes. The desired Michael adducts were formed with high yields and enantioselectivities. Density functional theory investigations throw light on the catalyst-substrate interaction and the reaction mechanism.


Subject(s)
Calixarenes , Cinchona , Catalysis , Stereoisomerism
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