Abstract
The chemoselective reaction of hydrazine on the ketone rather than the ester in a gem diester system with a γ‐keto group by hydrazinium sulfate and a tandem deesterification of one of the esters in this system by N,N‐dimethylformamide are reported.
Acknowledgment
The authors thank the Department of Science and Technology, New Delhi, for the NMR and for use of the single‐crystal X‐ray diffractometer facilities. Financial support from the Council of Scientific and Industrial Research, New Delhi, for S. Saravanan is gratefully acknowledged.
Notes
*This quartet appears as a disturbed one because of a diastereotopic characteristic.
*This quartet appears as a disturbed one because of a diastereotopic characteristic.
**One aromatic carbon has merged with another.
*This quartet appears as a disturbed one because of a diastereotopic characteristic.
**One aromatic carbon has merged with another.
*This quartet appears as a disturbed one because of a diastereotopic characteristic.
*This quartet appears as a disturbed one because of a diastereotopic characteristic.
**One aromatic carbon has merged with another.