Telescoped Oxidation and Cycloaddition of Urazoles to Access Diazacyclobutenes.
Telescoped Oxidation and Cycloaddition of Urazoles to Access Diazacyclobutenes.
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DOI:
10.1021/acs.joc.2c00280
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发表时间:
2022-06-03
期刊:
影响因子:
--
通讯作者:
Whitehead DC
中科院分区:
文献类型:
--
作者:
Miller BA;Narangoda CJ;Johnson TL;Barata RD;Belue F;Solomon EE;Bragg AA;Whitehead DC
Our previous method to access the diazacyclobutene scaffold did not allow for modification of the substituent originating from the 1,2,4-triazoline-3,5-dione component. We have circumvented this challenge and expanded access to additional structural diversity of the scaffold. A telescoped urazole oxidation and Lewis acid-catalyzed cyclization provided R3-substituted diazacyclobutenes. Calcium hypochlorite-mediated oxidation of urazoles followed by MgCl2-catalyzed cyclization of the resulting triazolinediones with thioalkynes promoted the formation of diazacyclobutenes bearing substitution at the R3 position originating from the triazolinedione component.
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影响因子:
1.1
作者:
WARRENER, RN;NUNN, EE;PADDONROW, MN
通讯作者:
PADDONROW, MN
影响因子:
3.6
作者:
GILLIS, BT;IZYDORE, RA
通讯作者:
IZYDORE, RA
影响因子:
3.6
作者:
KEANA, JFW;GUZIKOWSKI, AP;VANNICE, FL
通讯作者:
VANNICE, FL
影响因子:
4.6
作者:
Vlaminck, L.;De Bruycker, K.;Du Prez, F. E.
通讯作者:
Du Prez, F. E.
影响因子:
5.2
作者:
Breton, GW;Shugart, JH;Hicks, AD
通讯作者:
Hicks, AD