ChemInform Abstract: Silica Sulfuric Acid as a Reusable Heterogeneous Catalyst for the Diastereoselective Mukaiyama Aldol Reaction of 2-(Trimethylsilyloxy)furan: Facile Synthesis of γ-Butenolides.

ChemInform ◽  
2011 ◽  
Vol 42 (6) ◽  
pp. no-no
Author(s):  
Gowravaram Sabitha ◽  
M. Nagendra Prasad ◽  
M. Ramesh ◽  
J. S. Yadav
Keyword(s):  
Sulfuric Acid ◽  
Heterogeneous Catalyst ◽  
Aldol Reaction ◽  
Silica Sulfuric Acid ◽  
Facile Synthesis ◽  
Mukaiyama Aldol Reaction ◽  
Mukaiyama Aldol

Efficient Mukaiyama aldol reaction in water with TiO4 tetrahedra on a hydrophobic mesoporous silica surface

2014 ◽  
Vol 50 (88) ◽  
pp. 13473-13476 ◽  
Author(s):  
Hiroshi Shintaku ◽  
Kiyotaka Nakajima ◽  
Masaaki Kitano ◽  
Michikazu Hara
Keyword(s):  
Mesoporous Silica ◽  
Heterogeneous Catalyst ◽  
Silica Surface ◽  
Aldol Condensation ◽  
Aldol Reaction ◽  
Catalytic Performance ◽  
Reusable Catalyst ◽  
Mukaiyama Aldol Reaction ◽  
Mukaiyama Aldol ◽  
Reaction In Water

A new heterogeneous catalyst, hydrophobic TiO4-deposited mesoporous silica, exhibited high catalytic performance as a reusable catalyst for the Mukaiyama-aldol condensation in water without a surfactant.

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.

ChemInform Abstract: Mukaiyama Aldol Reaction of Trimethylsilyl Enolate with Aldehyde Catalyzed by CuI.

ChemInform ◽  
2013 ◽  
Vol 44 (22) ◽  
pp. no-no
Author(s):  
Hima Rani Kalita ◽  
Arun Jyoti Borah ◽  
Prodeep Phukan
Keyword(s):  
Aldol Reaction ◽  
Mukaiyama Aldol Reaction ◽  
Mukaiyama Aldol
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