The mechanism of Michael 1,4 Nucleophilic addition: a computationally derived reaction pathway.

DOI: 10.14469/hpc/7027 Metadata

Created: 2020-03-24 08:27

Last modified: 2020-04-15 07:50

Author: Henry Rzepa

License: Creative Commons: Public Domain Dedication 1.0

Funding: (none given)

Description

In 2013, I created an iTunesU library of 115 mechanistic types in organic and organometallic chemistry, illustrated using video animations of the intrinsic reaction coordinate (IRC) computed using a high level quantum mechanical procedure. That course is still available here and illustrates animations of the intrinsic reaction coordinate (IRC) computed using a high level quantum mechanical procedure. It is viewable  in the  iTunesU app on an iPhone or an iPad. The realisation struck me now‡ that one of the types not described in that library was Michael 1,4-nucleophilic addition to an activated alkene, as described at  Wikipedia. So here is that addition.

Member of collection / collaboration

DOIDescription
10.14469/hpc/177 Computation data for Henry Rzepa's blog

Members

DOIDescription
10.14469/hpc/7108 Michael 1,4 addition, G =TS2 S-C formation, wB97XD/Def2-TZVPP Tolylthio G = -1014.403593 DG = 20.4
10.14469/hpc/7110 Michael 1,4 addition, G = Reactant S-C formation, wB97XD/Def2-TZVPP Tolylthio NH3 G = -994.543630
10.14469/hpc/7103 Michael 1,4 addition, G = Reactant C-C formation, wB97XD/Def2-TZVPP Tolylthio G = -1014.436207
10.14469/hpc/7106 Michael 1,4 addition, G = TS2, S-C formation, wB97XD/Def2-TZVPP Tolylthio IRC
10.14469/hpc/7113 Michael 1,4 addition, G = TS1 , wB97XD/Def2-TZVPP Tolylthio NH3 G = -994.541235 DG = 1.5
10.14469/hpc/7107 Michael 1,4 addition, G = TS2 S-C formation, wB97XD/Def2-TZVPP Tolylthio NH3 G = -994.534927 DG = 5.5
10.14469/hpc/7079 Michael 1,4 addition, G = TS2, C-C formation, wB97XD/Def2-TZVPP with cyano replacing formyl G = -494.464414 DG
10.14469/hpc/7112 Michael 1,4 addition, G = TS2 S-C formation, wB97XD/Def2-TZVPP Tolylthio NH3 IRC
10.14469/hpc/7028 Michael 1,4 addition, Reactant wB97XD/Def2-TZVPP G = -515.568171
10.14469/hpc/7029 Michael 1,4 addition, G = TS1, (PT) wB97XD/Def2-TZVPP G = -515.557495 DG = 6.7
10.14469/hpc/7030 Michael 1,4 addition TS3 (PT) wB97XD/def2tzvpp G = -515.552809
10.14469/hpc/7031 Michael 1,4 addition, G = TS2, C-C formation, wB97XD/Def2-TZVPP G = -515.542243 DG = 16.3
10.14469/hpc/7020 Michael 1,4 addition TS2, IRC.
10.14469/hpc/7036 Michael 1,4 addition Zwitterionic intermediate Int1 wB97XD/Def2-TZVPP after initial PT G = -515.580485
10.14469/hpc/7034 Michael 1,4 addition Final product wB97XD/Def2-TZVPP after TS3 G = -515.589136
10.14469/hpc/7033 Michael 1,4 addition Enol product Int2 wB97XD/Def2-TZVPP after C-C bond formation G = -515.582006
10.14469/hpc/7035 Michael 1,4 addition Int3 before final PT G = -515.582051
10.14469/hpc/7064 Michael 1,4 addition, Reactant wB97XD/Def2-TZVPP with one formyl group replaced by nitro G = -606.769958
10.14469/hpc/7043 Michael 1,4 addition, G = TS2, C-C formation, wB97XD/Def2-TZVPP with nitro replacing formyl G = -606.751701
10.14469/hpc/7039 Michael 1,4 addition, G = TS2, C-C formation, wB97XD/Def2-TZVPP with methoxy replacing formyl G = -516.691914
10.14469/hpc/7040 Michael 1,4 addition, G = TS2, C-C formation, wB97XD/Def2-TZVPP with one formyl group removed G = -402.192661 IRC
10.14469/hpc/7038 Michael 1,4 addition, Reactant wB97XD/Def2-TZVPP with one formyl group removed G = -402.249779
10.14469/hpc/7037 Michael 1,4 addition, G = TS2, C-C formation, wB97XD/Def2-TZVPP with one formyl group removed G = -402.192661
10.14469/hpc/7076 Michael 1,4 addition, Reactant wB97XD/Def2-TZVPP with one formyl group replaced by methoxy G = -516.742828
10.14469/hpc/7078 Michael 1,4 addition, TS2 wB97XD/Def2-TZVPP with one formyl group replaced by nitro IRC
10.14469/hpc/7077 Michael 1,4 addition, Reactant wB97XD/Def2-TZVPP with one formyl group replaced by cyano G = -494.491432
10.14469/hpc/7080 Michael 1,4 addition, G = TS2, C-C formation, wB97XD/Def2-TZVPP with methoxy replacing formyl G = -516.691914 IRC

Associated DOIs

Current dataset ...DOIDescription
isReferencedBy 10.14469/hpc/7032 Associated blog post

Edit