Sterically demanding bi- and tridentate alkoxy-N-heterocyclic carbenes
Sterically demanding bi- and tridentate alkoxy-N-heterocyclic carbenes
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空间要求高的双齿和三齿烷氧基-N-杂环卡宾
DOI：
10.1016/j.ica.2006.07.075
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发表时间：
2007
影响因子：
2.8
通讯作者：
Arnold P
中科院分区：
文献类型：
--
作者：
Arnold P
In contrast to the one-pot, two step syntheses we recently reported for a large number of substituted bidentate alkoxy–carbene ligands derived from epoxides, the reaction of imidazole with 2-adamantyl epoxide readily affords the bis(ethoxyadamantyl) substituted imidazolium salt [1-C{(NR)CHCH(NRH)}] (RH=CH2(2-adamantyl)OH), which has been isolated and structurally characterised as its iodide salt, [HC{(NRH)CH}2]I. Treatment with group 1 bases results in the loss of one ethoxy arm, to afford the structurally characterised monosubstituted alcohol imidazole, [HC{(NR)CHCHN}], or the lithium carbene complex [LiC{(NR)CHCHN}], a carbene complex containing a singly-N-functionalised alkoxy carbene. Alternatively, the monosubstituted alcohol imidazole may ben requaternised at the nitrogen atom with iso-propyl iodide to form [HC{(NRH)CHCH(NPri)}]I, from which a more standard lithium alkoxycarbene complex [LiC{(NR)CHCHNPri}] may be generated.
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影响因子：
15
作者：
Amyes, TL;Diver, ST;Toth, K
通讯作者：
Toth, K
影响因子：
2.8
作者：
Cabeza, JA;del Río, I;Suárez, M
通讯作者：
Suárez, M
影响因子：
1.8
作者：
Crabtree, RH
通讯作者：
Crabtree, RH
钛(IV)烷氧基-N-杂环卡宾：醇盐和溴化物加合物的结构偏好
DOI：
--
发表时间：
2006
期刊：
影响因子：
--
作者：
S. Mungur;A. Blake;Claire Wilson;J. McMaster;P. Arnold
通讯作者：
P. Arnold
影响因子：
4.3
作者：
Arnold, PL;Blake, AL;Wilson, C
通讯作者：
Wilson, C