您当前所在位置: 首页 > 学者
在线提示

恭喜!关注成功

在线提示

确认取消关注该学者?

邀请同行关闭

只需输入对方姓名和电子邮箱,就可以邀请你的同行加入中国科技论文在线。

真实姓名:

电子邮件:

尊敬的

我诚挚的邀请你加入中国科技论文在线,点击

链接,进入网站进行注册。

添加个性化留言

已为您找到该学者8条结果 成果回收站

上传时间

2004年12月30日

【期刊论文】Unexpected ring size effect of the annulation reaction of heterocyclic secondary enamines with dicarboxylic acid dichlorides

成莹, Ying Cheng, a, * Hai-Bo Yang, Mei-Xiang Wang b, *, and David J. Williamsc

Tetrahedron 58(2002)2821-2829,-0001,():

-1年11月30日

摘要

Heterocyclic enamines are versatile ambident nucleophilic reagents able to react with both aliphatic and aromatic dicarboxylic acid dichlorides in diverse manners. The reaction outcome was strongly dependent upon the heterocyclic structure of the enamines and the nature of the diacid dichlorides employed.

上传时间

2004年12月30日

【期刊论文】Unexpected products from the formylation of N, N-dimethylanilines with 2-formamidopyridine in POCI3

成莹, Ying Cheng, *, a, Peng Jiao, David J. Williams b, and Otto-Meth Cohn*C

J. Chem. Soc., Perkin Trans. 1, 2001, 44-46,-0001,():

-1年11月30日

摘要

2-Formamidopyridine in POCL3 solution reacts with N, N-dimethylaniline to give tris (4-dimethylaminophenyl)-methane in 80% yield but with 4-X-N, N-dimethylanilines it gives 2-dimethylamino-5X-pheny1 [2-(N-methyl)-formamido-5-X-phenyl] (2-pyridylamino) methanes.

上传时间

2004年12月30日

【期刊论文】A Simple Route to N-ω-Chloroalkylisatins from Cyclic t-Anilines, Oxalyl Chloride and DABCO

成莹, Ying Cheng, *, a, Yu-Hua Zhan, Otto Meth-Cohn*, b

Synthesis 2002, No.1, 34-38,-0001,():

-1年11月30日

摘要

para-Substituted N-phenylpyrrolidines, -piperidines, perhydroazepines and-morpholines react with oxalyl chloride and DABCO to give the pharmaceutically useful intermediates, N-ω-ha-loalkylisatins, under mild conditions and generally good yields.

cyclic t-anilines,, oxalyl chloride,, DABCO,, N-ω-ha-loalkylisatins

上传时间

2004年12月30日

【期刊论文】A Very Simple Route to Benzonaphtho [1,5] Diazocines Using Vilsmeier Reagents via the't-Amino Effect'

成莹, Ying Cheng, *, a, Hai-Bo Yang, Bo Liu, Otto Meth-Cohn, b, David Watkin, c, Stephen Humphriesc

Synthesis 2002, No.7, 906-910,-0001,():

-1年11月30日

摘要

The novel fused heterocyclic systems 7,8,13,14-tetrahy-drobenzo [b] naphtho [1,2-ƒ][1,5] diazocine and 7,8,13,14-tetrahy-drobenzo [b] naphtho [2,1-ƒ][1,5] diazocine were prepared in moderate yields in a one step reaction by Vilsmeier formylation of 1-dimethyl-aminonaphthalene or 2-dimethylaminonaphthalene, respectively, by way of the 't-amino effect'. Novel rearranged byproducts were formed from 2-dimethylaminonaphthalene.

Vilsmeier,, dimethylaminonaphthalenes,, benzonaph-thodiazocines

上传时间

2004年12月30日

【期刊论文】The unique nucleophilic reactivity of arylaminochlorocarbenes†

成莹, Ying Cheng, *, a, Hua Yang a, and Otto Meth-Cohn*b

CHEM. COMMUN., 2003, 90-91,-0001,():

-1年11月30日

摘要

合作学者

  • 成莹 邀请

    北京师范大学,北京

    尚未开通主页