Chitosan catalyzed synthesis and antioxidant activities of diethyl hydroxy (substituted phenyl) methylphosphonates

Original Article

JOURNAL 1721

Organic Communications

VOLUME & ISSUE

Year: 2012 Issue: 4 October-December

PAGES

p.171 - 178

STATISTICS

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AUTHORS

N. Bakthavatchala Reddy, K. Uma Maheswara Rao , Ch. Syama Sundar , S. Siva Prasad , S. K. Nayak and C. Suresh Reddy

GRAPHICAL ABSTRACT

ABSTRACT

Chitosan catalyzed synthetic procedure has been developed for the synthesis of α-hydroxy phosphonates from different aromatic aldehydes and diethyl phosphite at 60 ºC. The title compounds are characterized by IR, 1H, 13C, 31P NMR and mass spectral data. All the title compounds 3a-j were tested for their invitro antioxidant activities by DPPH, Nitric Oxide and H2O2 scavenging methods.

KEYWORDS

α-Hydroxy phosphonates
chitosan
heterogeneous catalyst
diethyl phosphite
antioxidant activity.