Asymmetric intramolecular C–H insertion of sulfonyldiazoacetates catalyzed by Rh(II)
摘要:
The asymmetric C-H insertion of alkyldiazosulfones has been studied. High selectivity was achieved using a combination of a chiral catalyst and a chiral auxiliary (Rh-2(S-pttl)(4) and menthyl ester). Published by Elsevier Ltd.
Selective Formation of Six-Membered Cyclic Sulfones and Sulfonates by C−H Insertion
摘要:
Carbethoxy diazosulfones and sulfonates, easily available from corresponding sulfones and sulfonates, undergo C-H insertion with preferential formation of six membered cyclic sulfones and sulfonates.