Maxim Golfmann's research while affiliated with Georg-August-Universität Göttingen and other places
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Publications (4)
Bicyclobutanes are among the most highly strained isolable organic compounds and their associated low activation barriers to reactivity make them intriguing building-blocks in organic chemistry. In recent years, numerous creative synthetic strategies exploiting their heightened reactivity have been presented and these discoveries have often gone ha...
![Photochemical [2+2] cycloadditions of alkenes; [PC]=photocatalyst.](publication/364724208/figure/fig1/AS:11431281245831065@1716242128507/Photochemical-2-2-cycloadditions-of-alkenes-PCphotocatalyst_Q320.jpg)
![Scope of photocatalytic [2+2] cycloaddition. Reactions were performed...](publication/364724208/figure/fig3/AS:11431281245831068@1716242129161/Scope-of-photocatalytic-2-2-cycloaddition-Reactions-were-performed-on-a-100mmol_Q320.jpg)
![Scope of intramolecular photocatalytic [2+2] cycloaddition to fused...](publication/364724208/figure/fig4/AS:11431281245831070@1716242129626/Scope-of-intramolecular-photocatalytic-2-2-cycloaddition-to-fused-bicyclic-compounds_Q320.jpg)
![Proposed energy‐transfer reaction mechanism; [PC]=photocatalyst.](publication/364724208/figure/fig5/AS:11431281245831071@1716242129856/Proposed-energy-transfer-reaction-mechanism-PCphotocatalyst_Q320.jpg)
A visible‐light organophotocatalytic [2+2] cycloaddition of electron‐deficient styrenes is described. Photocatalytic [2+2] cycloadditions are typically performed with electron‐rich styrene derivatives or α,β‐unsaturated carbonyl compounds, and with transition‐metal‐based catalysts. We have discovered that an organic cyanoarene photocatalyst is able...
A visible light organophotocatalytic [2+2] cycloaddition of electron-deficient styrenes is described. Photocatalytic [2+2] cycloadditions are typically performed with electron-rich styrene derivatives or α,β-unsaturated alkenes, and with transition-metal-based catalysts. We have discovered that an organic cyanoarene photocatalyst is able to deliver...
The attempted syntheses of 3,4‐dimethylborole derivatives further bearing bulky SiMe2t‐Bu groups in 2,5‐position are reported. Isolation of base‐stabilized adducts to the chloroborole were achieved. The respective free borole was found to be unstable and revealed 1,3‐hydrogen atom shift isomerization to a 1‐bora‐1,3‐butadiene with an s‐trans orient...
Citations
... 23 Besides noncatalytic linear synthetic methods, several state-of-the-art catalytic strategies, including photocatalysis, boronyl radical catalysis, Lewis acid catalysis, and silver-promoted methods, have been developed by research groups led by Stephenson, 24 Molander, 25 Li, 26 Waser, 27 Wang,28 Deng, 29 (Fig. 1C). [31][32][33][34][35] In 2021, Baran and co-workers successfully achieved enantiopure BCP bioisosteres through SFC separation. Furthermore, their study revealed that substituting benzenoids with either Ror Senantiomers of BCPs results in distinct drug bioactivities. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/884885451456513-1587984540054_Q64/Johannes-Walker.jpg)
... [18] Thereafter, [2 + 2] solvent-free cycloaddition of 2 was realized in a Rayonet apparatus over 15 h. Cycloadduct rctt-3 a was obtained as a white solid with a mp = 128-130°C in 51 % yield, and characterized by 1 H and 13 C NMR spectroscopy showing coincidence with Golfmann et al.. [19] In order to find the best conditions for the isomerization process, additional experiments were carried out in 196 μL of acetonitrile using 0.2 equiv. of 1,8-diazabicyclo [5.4.0]undec-7-ene (DBU) as the base and at room temperature (Scheme 2). ...
