Ring-contraction from benzo[b][1,4]thiazines to benzo[d]thiazolines induced by oxygen

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	Ring-contraction from benzo[b][1,4]thiazines to benzo[d]thiazolines induced by oxygen
	Liao, SR; Tang, Y; Xu, L; Zhou, XF; Wang, JF; Yang, B; Liu, YH
刊名	TETRAHEDRON
	2017
卷号	73 期号:1 页码:98-107
关键词	Benzo[b][1,4]thiazine Benzo[d]thiazoline Ring-contraction Protic solvent Oxygen
通讯作者	yonghongliu@scsio.ac.cn
中文摘要	An unexpected ring-contraction from benzo[b]pyrazino[1,2-d][1,4]thiazine-1,4-diones (6) to benzo[4,5] thiazolo[3,2-a]pyrazine-1,4-diones (7) has been developed. The preliminary mechanistic studies showed the transformation contained two independent steps: the first step is the formation of a Michael adduct upon the addition of the protic solvent, in the presence of base, to the C-2-C-3 double bond of compound 6, and the second step is a ring-contraction induced by oxygen via the migration of sulfur atom from C-2 to C-3 position. And its scope is also studied. (C) 2016 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/16226]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
推荐引用方式 GB/T 7714	Liao, SR,Tang, Y,Xu, L,et al. Ring-contraction from benzo[b][1,4]thiazines to benzo[d]thiazolines induced by oxygen[J]. TETRAHEDRON,2017,73(1):98-107.
APA	Liao, SR.,Tang, Y.,Xu, L.,Zhou, XF.,Wang, JF.,...&Liu, YH.(2017).Ring-contraction from benzo[b][1,4]thiazines to benzo[d]thiazolines induced by oxygen.TETRAHEDRON,73(1),98-107.
MLA	Liao, SR,et al."Ring-contraction from benzo[b][1,4]thiazines to benzo[d]thiazolines induced by oxygen".TETRAHEDRON 73.1(2017):98-107.