Sulfur ylides with copper allenylidenes

Wen-Jing Xiao and co-workers from Central China Normal University have reported in JACS on an asymmetric [4+1] reaction between a copper allenylidene and sulfur ylide.

 

JACS paper

Palladium Carbenes

Daniel Sole and co-workers at Universidad Complutense de Madrid have reported in ACIE on the generation of palladium carbenoids from diazo precursors to effect an intramolecular C-H insertion.

 

ACIE paper

Ni-catalyzed cyclopropanation

Peter Chen and co-workers from ETH Zurich have reported in ACIE on a nickel catalyzed cyclopropanation. Looks similar to a Corey-Chaykovsky cyclopropanation because of the formation of an ylide.

ACIE paper

From carbenoids to allenoates

Xiaoming Feng and co-workers from Sichuan University have reported in the transformation of terminal alkynes to allenoates using diazo acetates.

ACIE paper

B-H Functionalization

Ming-Hua Xu and co-workers from the Chinese Academy of Sciences have reported in JACS on a rhodium catalyzed carbene insertion into a B-H bond.

JACS paper

Substituted benzaldehydes via NHCs

David Lupton and co-workers at Monash University have reported in Chemical Science on a method to synthesize substituted benzenes from acyclic precursors.

Chemical Science paper

B-H insertions

Ming-Hua Xu and co-workers from the Chinese Academy of Sciences have reported in JACS on a rhodium catalyzed transformation of a diazo to an organoborane.

JACS paper

NHC-catalyzed [4+2]

David Lupton and co-worker at Monash University have reported in JACS on an NHC-catalyzed [4+2] reaction.

JACS paper

Dihydropyran access

Carlos Saa and co-workers at Universidad de Santiago de Compostela have reported in ACIE on a reaction involving a ruthenium cascade followed by C-O formation to form dihydropyrans.

ACIE paper

Pyridines from 2H-azirines

Cheol-Min Park and co-workers from Nanyang Technological University in Singapore have reported in ACIE on the synthesis of pyridines from 2H-azirines.

ACIE paper