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Due to the ease of use in blogs, this new form of web content has become a popular online media. Detecting the popularity of blogs in the massive blogosphere is a critical issue. General search engines that ignore the social interconnection between bloggers have less discrimination of blogs. This study extracts real-world blog data and analyzes the interconnection in these blog communities for blog...
A short and convergent approach for the synthesis of shikalkin (dl-shikonin) is presented. Stobbe reaction was employed to construct the aromatic skeleton 6. This is followed by a practical method to prepare the key epoxides 9 from aldehydes 8 in high yield. Finally, shikalkin is achieved by Grignard reaction and oxidation.
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