7733-96-2Relevant academic research and scientific papers
Fluorescence spectroscopic characterization of 4,7-bis(2-thienyl)-1,2,5-oxadiazolo[3,4-c]pyridine; lead structure of new red-emitting EL material
Koga, Toshiaki,Takase, Akiara,Yasuda, Seiji,Yamashita, Shoji,Gorohmaru, Hideki,Thiemann, Thies,Mataka, Shuntaro,Takahashi, Kazufumi
, p. 173 - 178 (2002)
The spectroscopic parameters of 4,7-bis(2-thienyl)-1,2,5-oxadiazolo[3,4-c]pyridine (DTOP) were determined which was designed as a red-emitting dye for the electroluminescent (EL) device. The main optical transition of DTOP is attributable to 1La, and therefore, the fluorescence maximum shifted to the red side to reach to 630 nm according to the solvents. Although the non-radiative transition rate was enhanced, when the fluorescence maximum shifts to the longer than 610 nm, DTOP maintains the higher radiation transition probability.
Diacylfuroxans Are Masked Nitrile Oxides That Inhibit GPX4 Covalently
Eaton, John K.,Kramm, Anneke,Ruberto, Richard A.,Schreiber, Stuart L.,Viswanathan, Vasanthi S.
supporting information, (2020/01/02)
GPX4 represents a promising yet difficult-to-drug therapeutic target for the treatment of, among others, drug-resistant cancers. Although most GPX4 inhibitors rely on a chloroacetamide moiety to modify covalently the protein's catalytic selenocysteine residue, the discovery and mechanistic elucidation of structurally diverse GPX4-inhibiting molecules have uncovered novel electrophilic warheads that bind and inhibit GPX4. Here, we report our discovery that diacylfuroxans can act as masked nitrile oxide prodrugs that inhibit GPX4 covalently with unique cellular and biochemical reactivity compared to existing classes of GPX4 inhibitors. These observations illuminate a novel molecular mechanism of action for biologically active furoxans and also expand the collection of reactive groups capable of targeting GPX4.
Solvent-free mechanochemical synthesis of diacylfuroxans
Gu, Zhen-Zhen,Guo, Feng-Chao,Zhang, Pu,Qin, Yu-Jun,Guo, Zhi-Xin
supporting information, p. 1687 - 1690 (2019/06/05)
Acetophenones with a variety of substituents could be converted to diacylfuroxans in a solvent-free reaction by combining the reagents Fe(NO3)3·9H2O and P2O5 under high-speed ball milling. This reacti
Method for directly synthesizing furoxan from methyl ketone
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Paragraph 0070; 0071; 0072, (2020/01/08)
The invention discloses a method for directly synthesizing furoxan from methyl ketone, and belongs to the technical field of organic chemical synthesis. According to the method, methyl ketone is usedas a raw material, methyl ketone and a green nitration r
Synthesis of Furoxans and Isoxazoles via Divergent [2 + 1 + 1 + 1] Annulations of Sulfoxonium Ylides and tBuONO
Tang, Zhonghe,Zhou, Yao,Song, Qiuling
, p. 5273 - 5276 (2019/09/03)
We have presented a simple and new method for the divergent assembly of furoxans and isoxazoles in which the [2 + 1 + 1 + 1] annulation reaction of sulfoxonium ylides is reported for the first time. When the reaction was performed using tBuONO
Preparation of 4,7-dihetaryl-1,2,5-oxadiazolo[3,4-c]pyridines as red fluorescent materials
Gorohmaru, Hideki,Thiemann, Thies,Sawada, Tsuyoshi,Takahashi, Kazufumi,Nishi-I, Katsumi,Ochi, Naoko,Kosugi, Yoshio,Mataka, Shuntaro
, p. 421 - 431 (2007/10/03)
A series of 1,2,5-oxadiazolo[3,4-c]pyridines (6, 7, 8 and 10) with thiophene, furan, and benzothiophene rings at the 4 and 7 positions were prepared, in quest of a red fluorescent material useful in OLED devices. Compound (6, 7, 8 and 10) emit fluorescenc
