scholarly journals Bidentate Lewis Acids Derived from o ‐Diethynylbenzene with Group 13 and 14 Functions

ChemistryOpen ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1020-1027
Author(s):  
Jens Rudlof ◽  
Niklas Aders ◽  
Jan‐Hendrik Lamm ◽  
Beate Neumann ◽  
Hans‐Georg Stammler ◽  
...  
Keyword(s):  
Lewis Acids ◽  
Group 13 ◽  
Bidentate Lewis Acids

scholarly journals Surface Modification of Black Phosphorus with Group 13 Lewis Acids for Ambient Protection and Electronic Tuning

2021 ◽  
Author(s):  
Daniel Tofan ◽  
Yukako Sakazaki ◽  
Kendahl Walz Mitra ◽  
Ruoming Peng ◽  
Seokhyeong Lee ◽  
...  
Keyword(s):  
Surface Modification ◽  
Lewis Acids ◽  
Black Phosphorus ◽  
Group 13 ◽  
Electronic Tuning

ChemInform Abstract: Metallocene-Based Bidentate Lewis Acids

ChemInform ◽  
2010 ◽  
Vol 33 (51) ◽  
pp. no-no
Author(s):  
Frieder Jakle
Keyword(s):  
Lewis Acids ◽  
Bidentate Lewis Acids

Bidentate Lewis Acids for the Activation of 1,2-Diazines - A New Mode of Catalysis

2011 ◽  
Vol 2011 (17) ◽  
pp. 3238-3245 ◽  
Author(s):  
Simon N. Kessler ◽  
Markus Neuburger ◽  
Hermann A. Wegner
Keyword(s):  
Lewis Acids ◽  
Bidentate Lewis Acids

Non-planar Boron Lewis Acids Taking the Next Step: Development of Tunable Lewis Acids, Lewis Superacids and Bifunctional Catalysts

Synlett ◽  
2020 ◽  
Vol 31 (17) ◽  
pp. 1639-1648
Author(s):  
Guillaume Berionni ◽  
Aurélien Chardon ◽  
Arnaud Osi ◽  
Damien Mahaut ◽  
Ali Ben Saida
Keyword(s):  
Recent Work ◽  
Research Group ◽  
Lewis Acids ◽  
Experimental Studies ◽  
Planar Geometry ◽  
Bifunctional Catalysts ◽  
Group 13 ◽  
Recent Developments ◽  
Stereoelectronic Properties ◽  
Planar Group

Although boron Lewis acids commonly adopt a trigonal planar geometry, a number of compounds in which the trivalent boron atom is located in a pyramidal environment have been described. This review will highlight the recent developments of the chemistry and applications of non-planar boron Lewis acids, including a series of non-planar triarylboranes derived from the triptycene core. A thorough analysis of the properties and of the influence of the pyramidalization of boron Lewis acids on their stereoelectronic properties and reactivities is presented based on recent theoretical and experimental studies.1 Non-planar Trialkylboranes2 Non-planar Alkyl and Aryl-Boronates3 Non-planar Triarylboranes and Alkenylboranes3.1 Previous Investigations on Bora Barrelenes and Triptycenes3.2 Recent Work on Boratriptycenes from Our Research Group4 Applications of Non-planar Boranes4.1 Non-planar Alkyl Boranes and Boronates4.2 Non-planar Triarylboranes (Boratriptycenes)5 Other Non-planar Group 13 Lewis Acids6 Further Work and Perspectives

Bidentate Lewis acid catalysts in asymmetric synthesis

2002 ◽  
Vol 74 (1) ◽  
pp. 123-128 ◽  
Author(s):  
Keiji Maruoka
Keyword(s):  
Asymmetric Synthesis ◽  
Organic Synthesis ◽  
Lewis Acid ◽  
Lewis Acids ◽  
Asymmetric Induction ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts ◽  
High Chemical ◽  
Bidentate Lewis Acids

The chemistry of bidentate Lewis acids belongs to an unexplored field of science, and so far has been only poorly studied. This paper illustrates the design of several bidentate Al and Ti Lewis acids, and their successful application to selective organic synthesis, particularly to asymmetric synthesis. For example, a new, chiral bidentate Ti(IV) complex is successfully designed by adding commercially available Ti(OPri)4 and (S)-binaphthol sequentially to 2,2'-bis(tritylamino)-4,4'-dichlorobenzophenone in CH2Cl2, and can be utilized for simultaneous coordination to aldehyde carbonyls, thereby allowing the precise enantioface discrimination of such carbonyls for a new catalytic, practical enantioselective allylation of aldehydes with allyltributyltin. This chiral bidentate Ti(IV) catalyst exhibits uniformly high asymmetric induction as well as high chemical yields for various aldehydes. The present enantioselective allylation is highly chemoselective in the presence of other carbonyl moieties.

Ferrocene-Based Heteronuclear Bidentate Lewis Acids via Highly Selectiveortho-Borylation of 1,1‘-Bis(trimethylstannyl)ferrocene

2002 ◽  
Vol 21 (20) ◽  
pp. 4169-4181 ◽  
Author(s):  
Juan A. Gamboa ◽  
Anand Sundararaman ◽  
Lazaros Kakalis ◽  
Alan J. Lough ◽  
Frieder Jäkle
Keyword(s):  
Lewis Acids ◽  
Bidentate Lewis Acids
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