Microwave-assisted solvent-free synthesis of some bio-active substituted dihalo 1,4-benzoquinones on silica gel solid support

Department of Chemistry, Govt. College, Ajmer-305 001, Rajasthan, India Department of Pure & Applied Chemistry, M. D. S. University, Ajmer-305 009, Rajasthan, India E-mail : kgojha_mdsu@rediffmail.com Fax : 91-145-2670484 Manuscript received 6 August 2008, accepted 1 October 2008 An environmentally benign solvent-free microwave-assisted synthesis of biologically active 2,5-diarylamino- 3,6-dihalo-1,4-benzoquinones by the condensation of substituted anilines and chloranil has been reported on the inorganic solid support of silica gel.