A green and highly efficient method for the synthesis of 1,8-dioxooctahydroxanthenes catalyzed by melamine trisulfonic acid (MTSA) as a heterogenous and recyclable organocatalyst under solvent-free conditions is reported. This procedure provides many advantages such as easy work-up, clean conversions, short reaction times and high yields of the products.
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Organic Division-I,Indian Institute of Chemical Technology,Hyderabad 500007,IndiaOrganic Division-I,Indian Institute of Chemical Technology,Hyderabad 500007,India
P.Srihari
S.S.Mandal
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Organic Division-I,Indian Institute of Chemical Technology,Hyderabad 500007,IndiaOrganic Division-I,Indian Institute of Chemical Technology,Hyderabad 500007,India
S.S.Mandal
J.S.S.Reddy
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Organic Division-I,Indian Institute of Chemical Technology,Hyderabad 500007,IndiaOrganic Division-I,Indian Institute of Chemical Technology,Hyderabad 500007,India
J.S.S.Reddy
R.Srinivasa Rao
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Organic Division-I,Indian Institute of Chemical Technology,Hyderabad 500007,IndiaOrganic Division-I,Indian Institute of Chemical Technology,Hyderabad 500007,India
R.Srinivasa Rao
J.S.Yadav
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Organic Division-I,Indian Institute of Chemical Technology,Hyderabad 500007,IndiaOrganic Division-I,Indian Institute of Chemical Technology,Hyderabad 500007,India