1516-96-7Relevant articles and documents
Tetra-Aza-Pentacenes by means of a One-Pot Friedl?nder Synthesis
Ukwitegetse, Narcisse,Saris, Patrick J. G.,Sommer, Jonathan R.,Haiges, Ralf M.,Djurovich, Peter I.,Thompson, Mark E.
, p. 1472 - 1475 (2019)
Tetra-aza-pentacenes are attractive n-type small molecules for optoelectronic device applications, yet their syntheses are often laborious. Disclosed here is a one-pot Friedl?nder synthesis of 1,7,8,14-tetraazapentacece (tAP) derivatives (linear and/or be
Gold(I)-Catalyzed 7-exo-dig Cyclization: A Key Step to Access the Bicyclo[4.2.1]nonane Skeleton of Vibsatin A, a Neurotrophic Diterpenoid
Allievi, Luca,Dhambri, Sabrina,Sun, Rongyu,Selkti, Mohamed,Lannou, Marie-Isabelle,Sorin, Geoffroy,Ardisson, Janick
, p. 5218 - 5222 (2021)
Vibsatin A is a new neurotrophic vibsane-Type diterpenoid comprising a bridged bicyclo[4.2.1]nonane skeleton. Inspired by Sawamura's works, we generated the bicyclic backbone through a Conia-ene-derived 7-exo-dig cyclization from an enantiomerically enriched TIPS-based silyl enol ether. The reaction, catalyzed by a sensitive gold(I) complex, was efficiently performed on a large scale by glovebox free techniques. Furthermore, the shape of this system was exploited for subsequent installation of all of the stereogenic centers.
Boraformylation and Silaformylation of Allenes
Fujihara, Tetsuaki,Sawada, Ayumi,Yamaguchi, Tatsuya,Tani, Yosuke,Terao, Jun,Tsuji, Yasushi
, p. 1539 - 1543 (2017)
The boraformylation of allenes with B2(pin)2and a formate ester as boron and formyl source, respectively, proceeds in the presence of a copper catalyst. The reaction selectively affords the corresponding β-boryl β,γ-unsaturated aldeh
Phospholane-Phosphite Ligands for Rh Catalyzed Enantioselective Conjugate Addition: Unusually Reactive Catalysts for Challenging Couplings
Clarke, Matthew L.,Cordes, David B.,Fuentes, José A.,Gilbert, Sophie H.,Slawin, Alexandra M. Z.
supporting information, (2020/05/25)
The use of Rh catalysts derived from a phospholane-phosphite ligand were found to be more productive than the classic rhodium/BINAP system in enantioselective conjugate additions. These catalysts enable the use of lower amounts of aryl boronic acid in an