Archive for the ‘Titanium’ Category
Posted by naturalproductman on March 13, 2013
Ursula Bentrup and co-workers at Universitat Rostock in Germany have reported in Tetrahedron on an interesting setup to monitor a reaction.

Tetrahedron paper
Posted in Mechanistic, Methodology, New Setups, Titanium, Transition Metal | Leave a Comment »
Posted by naturalproductman on September 7, 2012
Marco Ciufolini and co-workers have reported in Organic Letters on an Ugi reaction.

OL paper
Posted in Cascade Reactions, Methodology, Multi-Component Coupling, Named Reactions, Titanium, Transition Metal, Ugi | Leave a Comment »
Posted by naturalproductman on July 3, 2012
Andreas Gansäuer and co-workers at Universitat Bonn have reported in ACIE on a HAT reaction to diastereoselectively and regioselectively open epoxides.

ACIE paper
Posted in Cascade Reactions, Methodology, Radical Chemistry, Titanium, Transition Metal | Leave a Comment »
Posted by naturalproductman on July 2, 2012
Teck Peng Loh and co-workers from the University of Science and Technology in China have reported in ACIE on a cationic cascade to access 8-oxotropanes.

ACIE paper
Posted in Cascade Reactions, Methodology, Seven-Membered Rings, Titanium, Transition Metal | Leave a Comment »
Posted by naturalproductman on April 4, 2012
Arun Ghosh and co-workers from Purdue have reported in Organic Letters on a Friedel-Crafts cascade to form a seven membered ring.

OL paper
Posted in Carbene, Cascade Reactions, Friedel-Crafts, Methodology, Named Reactions, Seven-Membered Rings, Titanium, Transition Metal | Leave a Comment »
Posted by naturalproductman on January 25, 2012
Andreas Gansauer and co-workers at the Universitat Bonn have reported in Chemistry a European Journal on an interesting mechanistic investigation of a cyclobutane forming reaction using a titanium catalyst.

Chemistry – a European Journal paper
Posted in Cascade Reactions, Computational, DFT, Mechanistic, Methodology, Radical Chemistry, Ring forming, Titanium, Transition Metal | Leave a Comment »
Posted by naturalproductman on August 30, 2011
Sarah Reisman and co-workers have reported in JACS on a total synthesis of maoecrystal Z featuring a samarium mediated radical redutive cyclization of a dialdehyde intermediate.

JACS paper
Isolation paper in OL
Posted in breast, Cancer, Cascade Reactions, Diterpene, leukemia, Methodology, ovarian, Radical Chemistry, Titanium, Transition Metal | Leave a Comment »
Posted by naturalproductman on March 5, 2011
Chakraborty and co-workers at CSIR have reported in Tetrahedron Letters on a titanium radical mediated epoxide rearrangement to form cyclopentanes.

TL paper
Posted in Cascade Reactions, Methodology, Titanium, Transition Metal | Leave a Comment »
Posted by naturalproductman on December 7, 2010
Fu-Min Zhang and co-workers at Lanzhou University have published in Chem Comm on a synthesis of stemonamide where a Schmidt reaction was used to access the 5,7-A,B-ring system.

Chem Comm paper
Posted in Aldol, Alkaloids, Dieckmann condensation, Methodology, Named Reactions, Schmidt, Spirocyclic centers, Titanium, Transition Metal | Leave a Comment »
Posted by naturalproductman on November 17, 2010
Armen Zakarian and co-worker have published in ACIEE on an approach towards sintokamides A, B and C. They take advantage of a ruthenium catalyzed cross coupling between a titanium enolate and a bis-chloro-monobromo-methane unit by using a ruthenium catalyst.

ACIEE paper
Posted in cross coupling, Methodology, Ruthenium, Titanium, Total Synthesis, Transition Metal | Leave a Comment »