76626-75-0Relevant academic research and scientific papers
Multistate π switches: Synthesis and photochemistry of a molecule containing three switchable annelated dihydropyrene units
Mitchell, Reginald H.,Bohne, Cornelia,Wang, Yunxia,Bandyopadhyay, Subhajit,Wozniak, Chelsea B.
, p. 327 - 336 (2006)
The synthesis of the multistate photochromic switch 3 is described. This switch contains three dihydropyrene (DHP) units in the most conjugated fully closed form 3-c,c,c. The thermally stable form has the central DHP unit open and is 3-c,o,c. NMR and lase
Novel synthetic route to dihydropyrenes
Chifuku, Kazufumi,Sawada, Tsuyoshi,Kihara, Takao,Shimojo, Kentaro,Sonoda, Hidetoshi,Kuwahara, Yutaka,Shosenji, Hideto,Ihara, Hirotaka
experimental part, p. 3153 - 3156 (2009/06/18)
We developed a new and short synthetic route to 2,7-di-tert-butyl-trans-15, 16-dimethyldihydropyrene (DHP) via tetrahydroxy[2.2]metacyclophane in four reaction steps with a total yield of 37%. 2,7-Di-tert-butyl-trans-15,16- dimethyldihydropyrene functionalized by acetoxy groups at 4-, 5-, 9-, 10-positions was synthesized via 5,13-di-tert-butyl-8,16-dimethyl-1,2,9,10- tetrahydroxy[2.2]MCP in five reaction steps with a yield of 24%, and its DHP structure was determined by 1H NMR spectroscopy and X-ray crystal-structure analysis. Georg Thieme Verlag Stuttgart.
