Consecutive reactions between methyl 3-dehydroshikimiate, amines and 1,2-dichloroalkanes under microwave conditions: a practical, one-pot construction of N-substituted dihydrobenzoxazines
Biomass-involved, facile and one-pot synthesis of N-aryl-2(3H)-benzoxazolones from methyl 3-dehydroshikimiate
作者:Ensheng Zhang、Xuejing Zhang、Yuchen Cai、Dejian Wang、Tianlong Xu、Jun Li、Ming Yan、Yong Zou
DOI:10.1039/c4ra08233h
日期:——
A facile and efficient method for the construction of N-aryl-2(3H)-benzoxazolones using the consecutive reaction of methyl 3-dehydroshikimiate, anilines and bis(trichloromethyl) carbonate is described.
Bio-based synthesis of secondary arylamines from (−)-shikimic acid
作者:Wei Wu、Yong Zou、Yu Chen、Jun Li、Zeliang Lv、Wen Wei、Tongkun Huang、Xianke Liu
DOI:10.1039/c1gc16162h
日期:——
family of secondaryarylamines, including diarylamines and arylalkylamines have been synthesized in good yields starting from the renewable and biomass-based feedstock (−)-shikimic acid (1). The tandem cross-coupling and aromatization reactions between primary amines and the intermediate (−)-methyl-3-dehydroshikimate (3) are crucial for realizing this strategy. The application of arylamines and alkylamines
A biomass-involved strategy for the synthesis of N-arylated dibenzo[b,e][1,4]oxazepin-11(5H)-ones, acridones, 7,12-dihydrodibenzo[b,e][1,4]oxazocin-6H-ones and dibenzo[b,f]azepin-10(11H)-ones
作者:Ensheng Zhang、Xuejing Zhang、Wen Wei、Dejian Wang、Yuchen Cai、Tianlong Xu、Ming Yan、Yong Zou
DOI:10.1039/c4ra12479k
日期:——
2-aminophenol (1) has been established. Four kinds of benzo-fused N-heterocycles with six- to eight-membered ring systems, including N-arylated dibenzo[b,e][1,4]oxazepin-11(5H)-ones (4), acridones (5), 7,12-dihydrodibenzo[b,e][1,4]oxazocin-6H-ones (6) and dibenzo[b,f]azepin-10(11H)-ones (7) have been efficiently synthesized in good to excellent yields, respectively. This process is comprised of the N-arylation
Consecutive reactions between methyl 3-dehydroshikimiate, amines and 1,2-dichloroalkanes under microwave conditions: a practical, one-pot construction of N-substituted dihydrobenzoxazines
作者:Ensheng Zhang、Tianlong Xu、Dejian Wang、Tongkun Huang、Mu Yuan、Jun Li、Yong Zou
DOI:10.1039/c3ra47221c
日期:——
A biomass-involved, one-pot, two-step protocol for the synthesis of N-substituted 3,4-dihydro-2H-1,4-benzoxazines has been developed. A wide range of new compounds have been efficiently synthesized in moderate to excellent yields via the three-component consecutive reactions between methyl 3-dehydroshikimiate (3-MDHS), amines and 1,2-dichloroalkanes in short reaction times under microwave conditions.