133429-87-5Relevant academic research and scientific papers
New approach to the synthesis of dibenzodiazacrown ethers by ring transformation of dibenzocrown ether
Dmitrieva, Svetlana N.,Churakova, Marina V.,Vedernikov, Artem I.,Kuz'mina, Lyudmila G.,Gromova, Sergey P.
experimental part, p. 2530 - 2535 (2011/04/23)
Opening of the macrocycle of 4′,4″(5″)-dinitrodibenzo-18- crown-6 ethers under the action of MeNH2 or MeONa to give podands was studied. Structure of the aza podands was confirmed by X-ray diffraction. A new approach to the synthesis of previou
RECYCLIZATION OF TETRANITRODIBENZO-18-CROWN-6 AND TETRANITRODIBENZO-24-CROWN-8 INTO MONOBENZOCROWN ETHERS
Ivanov, E. I.,Polishchuk, A. A.
, p. 1227 - 1229 (2007/10/02)
The benzo-9-crown-3 and benzo-12-crown-4 derivatives are formed by reaction of tetranitrodibenzo-18-crown-6-and tetranitrodibenzo-24-crown-8, respectively, with sodium methoxyethoxide in DMSO at 20 deg C.
