Synthesis 12-Aryl or 12-Alkyl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-one derivatives catalyzed by dodecatungstophosphoric acid
AUTOR(ES)
Wang, Hong-Juan, Ren, Xiao-Qian, Zhang, Yan-Yan, Zhang, Zhan-Hui
FONTE
Journal of the Brazilian Chemical Society
DATA DE PUBLICAÇÃO
2009
RESUMO
Um protocolo eficiente para a síntese de derivados de 12-aril ou 12-alquil-8,9,10,12-tetrahidro-benzo[a]xanten-11-one foi desenvolvido via reação de três componentes de aldeído, 2-naftol e 1,3-ciclohexadiona ou 5,5-dimetil-1,3-ciclohexadiona na presença de ácido 12-tungstofosfórico (H3PW12O40) sem o uso de solvente. A presente metodologia oferece muitas vantagens como altos rendimentos, procedimento simples, baixo custo, curto tempo de reação e condições brandas.
Documentos Relacionados
- Malignant transformation of human fibroblast cell strain MSU-1.1 by (+-)-7 beta,8 alpha-dihydroxy-9 alpha,10 alpha-epoxy-7,8,9,10-tetrahydrobenzo [a]pyrene.
- Modification of DNA by the benzo[a]pyrene metabolite diol-epoxide r-7,t-8-dihydroxy-t-9,10-oxy-7,8,9,10-tetrahydrobenzo[a]pyrene.
- Tumorigenicity of the optical enantiomers of the diastereomeric benzo[a]pyrene 7,8-diol-9,10-epoxides in newborn mice: exceptional activity of (+)-7beta,8alpha-dihydroxy-9alpha,10alpha-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene.
- Error-free excision of the cytotoxic,mutagenic N2-deoxyguanosine DNA adduct formed in human fibroblasts by (+/-)-7 beta, 8 alpha-dihydroxy-9 alpha, 10 alpha-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene.
- (+/-)-7alpha,8beta-dihydroxy-9beta,10beta-epoxy-7,8,9,10-tetrahydrobenzo(a)-pyrene is an intermediate in the metabolism and binding to DNA of benzo(a)pyrene.
