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全部话题 - 话题: ketene
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c****8
发帖数: 33
1
怎么能当上海科大的副校长?
EDUCATION:
1990 Ph.D. Inorganic Chemistry, Purdue University
1982 Undergraduate Education, East China Normal University, Shanghai,
China.
EXPERIENCE:
1998- Professor of Chemistry, Southeast Missouri State University
1994- Associate Professor of Chemistry, Southeast Missouri State University
1990-1994 Assistant Professor of Chemistry, Southeast Missouri State
University
1993 summer NASA JOVE Research fellow, Lewis Research Center, Cleveland, OH.
1991 summer Visiting Professor,... 阅读全帖
x******g
发帖数: 289
2
来自主题: Returnee版 - 上海科大新进人员论文水平堪忧
物质学院(包括物理、材料、化学等学科)
该学院一共一个正教授,三个助理教授
正教授代表作
1. A First Example of “Wittig Reaction” on a Coordinated Carbon Dioxide
Nickel Complex. Journal of American Chemical Society.
2. Theoretical Study of Carbon Dioxide Coordination in Palladium Complexes.
Applied Organometallic Chemistry.
3. Theoretical Investigation of Ketene Bonding Modes in Bis(phosphine)
Palladium Ketene Complexes. Journal of Coordination Chemistry.
4. Double Insertion of Methylene into Nickel-Phosphorus Bonds: Synthesis and
Structur... 阅读全帖
c******n
发帖数: 16403
3
来自主题: Chemistry版 - acid chloride purity test by GC
靠, 有碱的时候容易形成ketene, 光兑点甲醇就形成ketene了也太夸张了。 事实
上用GC-MS检测羧酸的时候都是喜欢用甲醇做溶剂, 掺点二氯亚砜in situ形成甲酯来
检测。 要象你这样挑刺也能挑
s*******h
发帖数: 3731
4
来自主题: Chemistry版 - 请教大家酰基氯和酚的反应
老娘踢你个鸡飞蛋打。。。居然又在这里寒碜超工。。。。
俺硕士还是肄业,怎么懂得如此高深的东东。。。
不过放了半天狗,查了半天金镐头数据库。。。
超工发现:
这个体系不能用DMAc啊。。。
1. DMAc稳定phenolate啊。。solvation shell大啊。。反应就慢啊。。。
2. DMAc稳定反应中间体啊。。不容易进行消去Cl或者phenolate
3. phenolate也是好的离去集团啊。。
当年俺用一个malonate的酚酯的底物,加碱马上消去形成ketene了。。
综上所述啊,不反应不奇怪啊。。。
B*****n
发帖数: 654
5
来自主题: Chemistry版 - paper help
Thank you
Detection of Open-Chain Intermediates in the Formation of -Lactams from
Ketenes and Azomethines
Angewandte Chemie International Edition in English
Volume 7, Issue 10, Date: October 1968, Pages: 826-827
w*****[email protected]
t*********e
发帖数: 68
6
来自主题: Chemistry版 - paper help
Title: The high stereoselectivity of the tandem sequence Diels-Alder
reaction/Ireland-Claisen rearrangement starting from substituted O-(E)-buta-
1,3-dienyl ketene acetals and cyclic dienophiles
Authors: Soldermann, Nicolas; Velker, Jorg; Neels, Antonia; Stoeckli-Evans,
Helen; Neier, Reinhard
Synthesis 15, 2379-2387, 2007
s*******h
发帖数: 3731
7
来自主题: Chemistry版 - acid chloride purity test by GC
你咋知道行成ketene没有,kenene有没有2+2?
w******9
发帖数: 1604
8
来自主题: Chemistry版 - paper help! JCP
Structures in the energy dependence of the rate constant for ketene
isomerization
Edward R. Lovejoy1 and C. Bradley Moore
http://scitation.aip.org/content/aip/journal/jcp/98/10/10.1063/1.464592
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