Regular/abnormal variation in the strength and nature of the halogen bond between H 2 Te and the dihalogens: Prominent effect of methyl substituents

2020 ◽  
Vol 34 (4) ◽  
Author(s):  
Ruijing Wang ◽  
Ziyi Cheng ◽  
Qingzhong Li ◽  
Sean A.C. McDowell
Keyword(s):  
Halogen Bond ◽  
Abnormal Variation

Mukaiyama Aldol Reaction Catalyzed by (Benz)imidazolium-Based Halogen Bond Donors

2020 ◽  
Author(s):  
Revannath L. Sutar ◽  
Nikita Erochok ◽  
Stefan Huber
Keyword(s):  
Halogen Bond ◽  
Aldol Reaction ◽  
Mukaiyama Aldol Reaction ◽  
Mukaiyama Aldol ◽  
Background Reaction ◽  
Strong Performance ◽  
The Stability ◽  
Elemental Iodine

A series of cationic monodentate and bidentate iodo(benz)­imidazolium-based halogen bond (XB) donors were employed as catalysts in a Mukaiyama aldol reaction. While 5 mol% of a monodentate variant showed noticeable activity, a <i>syn</i>-preorganized bidentate XB donor provided a strong performance even with 0.5 mol% loading. In contrast to the very active BAr<sup>F</sup><sub>4</sub> salts, PF<sub>6</sub> or OTf salts were either inactive or showed background reaction. Repetition experiments clearly ruled out a potential hidden catalysis by elemental iodine and demonstrated the stability of our catalyst over three consecutive cycles.

Recent Strategies for Carbon‐Halogen Bond Formation Using Nickel

2021 ◽  
Author(s):  
Mark Lautens ◽  
Austin D. Marchese ◽  
Timur Adrianov
Keyword(s):  
Halogen Bond ◽  
Bond Formation

Halogen bond-induced electrophilic aromatic halogenations

2021 ◽  
Author(s):  
Wanutcha Lorpaiboon ◽  
Pakorn Bovonsombat
Keyword(s):  
Halogen Bond

This review highlights the recent development of halogen bond-induced activations of N-halosuccinimides and N,N-dihalodimethylhydantoins in electrophilic aromatic halogenations.

scholarly journals The influence of secondary interactions on the [N‐I‐N]+ halogen bond

2021 ◽  
Author(s):  
Sofia Lindblad ◽  
Flóra Boróka Németh ◽  
Tamás Földes ◽  
Daniel von der Heiden ◽  
Herh G. Vang ◽  
...  
Keyword(s):  
Halogen Bond ◽  
Secondary Interactions

Specific Effects of Room Temperature Ionic Liquids on Cleavage Reactivity:  Example of the Carbon−Halogen Bond Breaking in Aromatic Radical Anions

2004 ◽  
Vol 108 (29) ◽  
pp. 6175-6182 ◽  
Author(s):  
Corinne Lagrost ◽  
Said Gmouh ◽  
Michel Vaultier ◽  
Philippe Hapiot
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
Halogen Bond ◽  
Room Temperature Ionic Liquids ◽  
Bond Breaking ◽  
Radical Anions ◽  
Aromatic Radical ◽  
Specific Effects

Halogen bond with the multivalent halogen acting as the Lewis acid center

2014 ◽  
Vol 605-606 ◽  
pp. 131-136 ◽  
Author(s):  
Sławomir J. Grabowski
Keyword(s):  
Lewis Acid ◽  
Halogen Bond ◽  
Acid Center ◽  
Lewis Acid Center

Halogen Bond as Controlling the Crystal Structure of 4-Amino-3,5-Dihalogenobenzoic Acid and Its Effect on the Positional Ordering/Disordering of Acid Protons

2014 ◽  
Vol 14 (12) ◽  
pp. 6189-6196 ◽  
Author(s):  
Kouhei Ueda ◽  
Masaharu Oguni ◽  
Tetsuo Asaji
Keyword(s):  
Crystal Structure ◽  
Halogen Bond
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