Cellulose and its derivatives films are increasingly used in paper, packaging, other fields, but there is limited research on with anti-counterfeiting patterns. Here, we demonstrate an approach to prepare cellulose film a micro-millimeter scale pattern by lithium chloride (LiCl) crystal template, which grows out the in-situ generation formation process. The surface morphologies of as-prepared w...

Cellulose sulfonic acid efficiently catalyzes the one-pot reaction of 4hydroxycoumarin and aryl aldehydes under mild reaction conditions to yield biscoumarin derivatives in high yields. This method is of great value because of its easy processing, short reaction time and high yields. We anticipate the present method will receive the attention of medicinal chemists and be used for elaborate synt...