Lakshmi Balagopal

A novel multicomponent reaction of dimethoxycarbene and DMAD with aldehydes and quinones: facile synthesis of dihydrofuran derivatives

Abstract The zwitterionic species generated by the addition of dimethoxy carbene to dimethyl acetylenedicarboxylate (DMAD) is trapped by aldehydes and quinones to yield dihydrofuran derivatives in good yields.

Cerium(IV) Ammonium Nitrate Induced Dimerization of Methoxystyrenes

4-Methoxystyrene 1 underwent dimerization to 1,4-diphenylbutane derivatives 5 and 6 in presence of CAN in methanol. But in ethanol the same reaction afforded a tetralone derivative along with 5 and 6. 3,4-Dimethoxystyrene 10 underwent dimerization in presence of CAN in methanol to afford acyclic as well as cyclic products. 3,4,5-Trimethoxystyrene 12 in presence of CAN in methanol afforded only the cyclized dimers, the tetralone 21 and the tetralin derivative 22.

A novel CAN-mediated oxidative rearrangement of monoterpenes☆

A facile CAN-mediated oxidative rearrangement of monoterpenes of the pinene family to afford bisamides and ether derivatives is described.

Oxidative cyclisation of cinnamyl ethers mediated by CAN: a stereoselective synthesis of 3,4-trans disubstituted tetrahydrofuran derivatives

The oxidative cyclisation of cinnamyl ethers mediated by cerium(IV) ammonium nitrate results in the stereospecific formation of 3,4-trans disubstituted tetrahydrofuran derivatives in moderate to good yields.