84201-33-2Relevant articles and documents
NEW METHODS AND REAGENTS IN ORGANIC SYNTHESIS. 30. RING ENLARGEMENT OF CYCLOALKANONES WITH BENZYLSULFONYLDIAZOMETHANE AND CONVERSION OF THE RESULTING HOMOLOGATED 2-BENZYLSULFONYLCYCLOALKANONES TO 1-BENZYLSULFONYL-1-CYCLOALKENES VIA CHELETROPIC RING CONTRA
Toyama, Sachio,Aoyama, Toyohiko,Shioiri, Takayuki
, p. 3032 - 3035 (2007/10/02)
Benzylsulfonyldiazomethane can be used for the ring enlargement of cycloalkanones (1) with various ring sizes.The resulting homologated 2-benzylsulfonylcycloalkanones (2) are easily converted to 1-benzylsulfonyl-1-cycloalkenes (4) by bromination followed