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Molecules 2011, 16(8), 6561-6576; doi:10.3390/molecules16086561
Article

Synthesis of New Pentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione (PCU) Cyanosilylated Derivatives Using Sulphated Zirconia and Hydrotalcite as Catalysts in Microwave-Assisted Reactions under Solvent Free Conditions

1
, 1
, 1
, 1,* , 2
, 2
, 3
 and 4
1 Department of Basic Sciences, UAM-A, Av. San Pablo, No. 180. C.P. 02200, México, D.F., Mexico 2 Department of Chemistry, UAM-I, San Rafael Atlixco, No. 186. C.P. 09340, México, D.F., Mexico 3 Institute of Chemistry, UNAM, Circuito Exterior C.U., C.P.04515, México, D.F., Mexico 4 IMP, Eje Central Lázaro Cárdenas No. 152 San Bartolo Atepehuacan, C.P. 07730 México, D.F., Mexico
* Author to whom correspondence should be addressed.
Received: 10 June 2011 / Revised: 26 July 2011 / Accepted: 29 July 2011 / Published: 4 August 2011
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Abstract

A comparison was made of the effectiveness of the functionalization reactions of pentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione (PCU) using sulphated zirconia in protection-deprotection reactions and Mg/Al hydrotalcite in a cyanosilylation reaction, under classical thermal conditions and imposing microwave radiation; improved yields and reaction times were considered.
Keywords: sulphated zirconia; hydrotalcite; catalysts; PCU; microwaves sulphated zirconia; hydrotalcite; catalysts; PCU; microwaves
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Guerra-Navarro, N.A.; Palacios-Grijalva, L.N.; Angeles-Beltrán, D.; Negrón-Silva, G.E.; Lomas-Romero, L.; González-Zamora, E.; Gaviño-Ramírez, R.; Navarrete-Bolaños, J. Synthesis of New Pentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione (PCU) Cyanosilylated Derivatives Using Sulphated Zirconia and Hydrotalcite as Catalysts in Microwave-Assisted Reactions under Solvent Free Conditions. Molecules 2011, 16, 6561-6576.

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