Organocatalytic Enantioselective Vinylogous Aldol Reaction of Allyl Aryl Ketones to Activated Acyclic Ketones

2016 ◽  
Vol 18 (2) ◽  
pp. 260-263 ◽  
Author(s):  
Zhenzhong Jing ◽  
Xiangbin Bai ◽  
Wenchao Chen ◽  
Gao Zhang ◽  
Bo Zhu ◽  
...  
Keyword(s):  
Aldol Reaction ◽  
Aryl Ketones ◽  
Acyclic Ketones

ChemInform Abstract: Organocatalytic Enantioselective Vinylogous Aldol Reaction of Allyl Aryl Ketones to Activated Acyclic Ketones.

ChemInform ◽  
2016 ◽  
Vol 47 (21) ◽  
Author(s):  
Zhenzhong Jing ◽  
Xiangbin Bai ◽  
Wenchao Chen ◽  
Gao Zhang ◽  
Bo Zhu ◽  
...  
Keyword(s):  
Aldol Reaction ◽  
Aryl Ketones ◽  
Acyclic Ketones

Direct Asymmetric Aldol Reaction of Aryl Ketones with Aryl Aldehydes Catalyzed by Chiral BINOL-Derived Zincate Catalyst

2008 ◽  
Vol 73 (18) ◽  
pp. 7398-7401 ◽  
Author(s):  
Hong Li ◽  
Chao-Shan Da ◽  
Yu-Hua Xiao ◽  
Xiao Li ◽  
Ya-Ning Su
Keyword(s):  
Aldol Reaction ◽  
Asymmetric Aldol ◽  
Aryl Aldehydes ◽  
Asymmetric Aldol Reaction ◽  
Aryl Ketones

Highly diastereoselective aldol reaction of fluoroalkyl aryl ketones with methyl isocyanoacetate catalyzed by silver(I)/triethylamine

1994 ◽  
Vol 35 (7) ◽  
pp. 1055-1058 ◽  
Author(s):  
Vadim A. Soloshonok ◽  
Tamio Hayashi ◽  
Kohki Ishikawa ◽  
Nobuya Nagashima
Keyword(s):  
Aldol Reaction ◽  
Aryl Ketones

ChemInform Abstract: Highly Diastereoselective Aldol Reaction of Fluoroalkyl Aryl Ketones with Methyl Isocyanoacetate Catalyzed by Silver(I)/Triethylamine.

ChemInform ◽  
2010 ◽  
Vol 25 (26) ◽  
pp. no-no
Author(s):  
V. A. SOLOSHONOK ◽  
T. HAYASHI ◽  
K. ISHIKAWA ◽  
N. NAGASHIMA
Keyword(s):  
Aldol Reaction ◽  
Aryl Ketones

Organocatalytic Asymmetric Vinylogous Aldol Reaction of Allyl Aryl Ketones to Silyl Glyoxylates

2018 ◽  
Vol 83 (3) ◽  
pp. 1518-1524 ◽  
Author(s):  
Man-Yi Han ◽  
Wen-Yu Luan ◽  
Pei-Lin Mai ◽  
Pinhua Li ◽  
Lei Wang
Keyword(s):  
Aldol Reaction ◽  
Silyl Glyoxylates ◽  
Aryl Ketones

An Alternate Energy-Conserved Pathway for the Morita-Baylis-Hillman (MBH) Reaction

2020 ◽  
Author(s):  
Veejendra Yadav
Keyword(s):  
Proton Transfer ◽  
Transition State ◽  
Lower Energy ◽  
Aldol Reaction ◽  
Membered Ring ◽  
Ammonium Ion ◽  
Alternate Energy ◽  
Ring Transition State ◽  
Mbh Reaction

An new overall lower energy pathway for the amine-catalysed Morita-Baylis-Hillman reaction is proposed from computations at the M06-2X/6-311++G(d,p) level. The pathway involves proton-transfer from the ammonium ion to the alkoxide formed from the aldol reaction through a seven-membered ring transition state (TS) structure followed by highly exothermic Hofmann<i> </i>elimination through a five-membered ring TS structure to form the product and also release the catalyst to carry on with the process all over again.

An Alternate Energy-Conserved Pathway for the Morita-Baylis-Hillman (MBH) Reaction

2020 ◽  
Author(s):  
Veejendra Yadav
Keyword(s):  
Proton Transfer ◽  
Transition State ◽  
Lower Energy ◽  
Aldol Reaction ◽  
Membered Ring ◽  
Ammonium Ion ◽  
Alternate Energy ◽  
Ring Transition State ◽  
Mbh Reaction

An new overall lower energy pathway for the amine-catalysed Morita-Baylis-Hillman reaction is proposed from computations at the M06-2X/6-311++G(d,p) level. The pathway involves proton-transfer from the ammonium ion to the alkoxide formed from the aldol reaction through a seven-membered ring transition state (TS) structure followed by highly exothermic Hofmann<i> </i>elimination through a five-membered ring TS structure to form the product and also release the catalyst to carry on with the process all over again.

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