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A novel bis(guanidiniums)receptor for the catalytic cleavage of phosphosdiester was prepared and self-assembly architecture through hydrogen bonds and electrostatic interactions a-mong the bis(guanidiniums)receptor,the sulfate anion and water molecule was revealed by X-ray crystallographic analy- 相似文献
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The debenzylation and selective de-tert-butylation of p-tert-calix[4]arene derivatives were studied and 11,17,23-tri-tert-butyl-25,26,27-tri-O-etherated calix[4] arenes were synthesized by a simultaneous debenzylation and selective de-tert-butylation process. 相似文献
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