Enantioselective Organo-SOMO Cascade Cycloadditions: A Rapid Approach to Molecular Complexity from Simple Aldehydes and Olefins
作者:Nathan T. Jui、Esther C. Y. Lee、David W. C. MacMillan
DOI:10.1021/ja104313x
日期:2010.7.28
radical-mediated (4 + 2) coupling reaction of aldehydes and conjugated olefins has been achieved through asymmetric SOMO-catalysis. A radical-polar crossover mechanism is proposed wherein olefin addition to a transient enamine radical cation and oxidation of the resulting radical furnishes a cation which is vulnerable to nucleophilic addition. A range of aromatic aldehydes are shown to couple with styrenes and
Copper-Catalyzed Borylacylation of Activated Alkenes with Acid Chlorides
作者:Yuan Huang、Kevin B. Smith、M. Kevin Brown
DOI:10.1002/anie.201707323
日期:2017.10.16
for the copper‐catalyzedborylacylation of activated alkenes is presented. The reaction involves borylcupration of the alkene, followed by capture of the generated alkyl–copper intermediate with an acid chloride. The reactions operated with low catalyst loading and generally occurre within 15 min at room temperature for a range of activated alkenes. In the case of vinyl arenes, enantioselective borylacylation
The present invention relates to novel compounds of formula (I):
wherein m, n, R
0
, R
1
, R
2
, R
3
and R
4
are as described herein,
to pharmaceutical compositions comprising the compounds, to processes for their preparation, as well as to the use of the compounds for the preparation of a medicament against 5-HT
6
receptor-related disorders.
The present invention relates to novel compounds of formula (I):
wherein m, n, R0, R1, R2, R3 and R4 are as described herein,
to pharmaceutical compositions comprising the compounds, to processes for their preparation, as well as to the use of the compounds for the preparation of a medicament against 5-HT6 receptor-related disorders.