Blog Archives

Carbon-Sulfur Bis[7]Helicene: [15]Helicenes with a Missing Link…


*This is the 5th post of the helicene series* After asymmetric synthesis of carbon-sulfur [11]helicene, we went back to the drawing board…. plugging away at the connection/annelation sequences…the next challenge was carbon-sulfur [15]helicene.  Here is the retrosynthesis. It seemed pretty

Posted in Chiral, Helicene

Carbon-Sulfur [11]Helicenes: Syntheses, Structures and Properties


*This is the 4th post of the helicene series* Yeah, asymmetric synthesis of carbon-sulfur [7]helicene was great! But with the iterative synthetic scheme, it seemed we could keep going and going…forever….ha ha ha,…on paper, of course. It was kinda fun…

Posted in Chiral, Helicene

Carbon-Sulfur [7]Helicenes: Syntheses, Structures and Properties


*This is the third post of the Helicene series* Alright, we had the beautiful all-thiophene, or carbon-sulfur, [n]helicene structures drawn out. The question was…how to make them? Organic synthesis can be very arduous and challenging, especially for molecules with complex

Posted in Chiral, Helicene

Carbon-Sulfur [n]Helicenes: The Beginning.


*This is the second post of the Helicene series* An unexpected discovery…that would be wonderful… But sometimes one research project could lead to another unexpectedly…. This was how we started the carbon-sulfur helicene project. So, when carrying out research projects,

Posted in Chiral, Helicene

Ah, Those Aesthetically Pleasing Structures …. [n]Helicenes


Helicene was recently posted by Molecule of the Day as example of chirality. The post included the link to the Wikipedia page that badly needed updated information. So, when you get to Wikipedia, keep in this in mind…you may miss

Posted in Chiral, Helicene