A Versatile Method for the Protection of Carbonyl Compounds by
Camphor Sulfonic Acid.
CURRENT ORGANOCATALYSIS 2018;
5:196-200. [PMID:
31815094 PMCID:
PMC6859800 DOI:
10.2174/2213337206666181126120156]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 10/15/2018] [Accepted: 11/07/2018] [Indexed: 11/22/2022]
Abstract
Background:
Carbonyl groups are important functional groups and they play a key role in organic chemistry. This group needs to be protected in multistep synthesis against various reagents for a counter-reaction. The effort towards developing an efficient methodology for the protection of car-bonyl functional group is always a demanding reaction. The protection of carbonyl compounds for in-hibiting their chemical reactivity is an important operation in chemistry. In this paper, camphor sulfonic acid-catalysed protection of various carbonyl compounds is developed. This method is simple, envi-ronmentally friendly and yields products in high yields.
Method:
Commercially available camphor sulfonic acid is used as organo-catalyst for the protection of carbonyl functionality. This catalyst is also employed for the protection of carbonyl functionality as thi-oacetal/mixed ketal in excellent yield. The newly synthesize compounds are characterized using 1HNMR, 13C NMR and IR spectroscopy.
Result:
A diverse carbonyl functional group is protected in excellent yield under mild reaction condi-tions.
Conclusion:
We have developed an efficient organocatalysed protection method of carbonyl function-ality applicable to wide range of substrates
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