294857-25-3Relevant articles and documents
Versatile synthesis of 3,4-b diheteropentalenes
Dey, Tanmoy,Navarathne, Daminda,Invernale, Michael A.,Berghorn, Ian D.,Sotzing, Gregory A.
supporting information; experimental part, p. 2089 - 2091 (2010/06/14)
We describe a new route for the synthesis of thieno[3,4-b]thiophene, alkyl derivatives thereof, seleno[3,4-b]thiophene, and thieno[3,4-b]furan made from inexpensive starting materials, such as thiophene-2-carboxylic acid and furan-2-carboxylic acid. Such fused heterocycles are of great interest for low band gap organic semiconductors and applications including OLEDs, organic photovoltaic cells, and electrochromics.
α,25-Dihydroxyvitamin D3 analogs featuring aromatic and heteroaromatic rings: Design, synthesis, and preliminary biological testing
Posner,Li,White,Vinader,Takeuchi,Guggino,Dolan,Kensler
, p. 4529 - 4537 (2007/10/03)
Aromatic compounds 2a-c, analogs of 1α,25-dihydroxyvitamin (calcitriol, 1), and heteroaromatic compounds 4a-c and 5a-c, analogs of 19-nor-1α,25- dihydroxyvitamin D3 (3), were designed to simulate the topology of their biologically potent parent