One-pot synthesis of potential thermochromic and photochromic colorants
碩士 === 東海大學 === 化學系 === 101 === Multi-component reactions (MCRs) was utilized in the synthesis of [3,2-c]pyrano-coumarin derivatives 2、4、9、13, in order to shorten the time waste. Our studies suggest that unsaturated ketone came from ketoenol condensation from solvent, acetone. The mechanism of synth...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2013
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/02200589801144639004 |
| Summary: | 碩士 === 東海大學 === 化學系 === 101 === Multi-component reactions (MCRs) was utilized in the synthesis of
[3,2-c]pyrano-coumarin derivatives 2、4、9、13, in order to shorten the
time waste. Our studies suggest that unsaturated ketone came from ketoenol
condensation from solvent, acetone. The mechanism of synthesized
compounds was characterized by X-ray crystallography. Also, a novel
photochromic colorant 30 was designed and synthesized. When dissolved
in methylene chloride, compound 30 is yellow; it turns purple upon UV
irradiation (306 nm). The photogenerated product can revert back to 30
when either being heated or exposed to light with a longer wavelength.
|
|---|