PREPARATION OF PRECURSORS OF CARBENES OF CAAC TYPE AND PREPARING SAID CARBENES THEREFROM
申请人:Mignani Gérard
公开号:US20100113791A1
公开(公告)日:2010-05-06
Precursors of carbenes of CAAC type (Cyclic)(Alkyl)(Amino)(Carbenes) are prepared and carbenes are produced therefrom; novel synthesis intermediates are provided for preparing the precursors of CAAC-type carbenes.
The structural properties and binding motif of a stronglyσ‐electron‐donating N‐heterocyclic carbene have been investigated on different transition‐metal surfaces. The examined cyclic (alkyl)(amino)carbene (CAAC) was found to be mobile on surfaces, and molecular islands with short‐range order could be found at high coverage. A combination of scanning tunneling microscopy (STM), X‐ray photoelectron
Realizing 1,1‐Dehydration of Secondary Alcohols to Carbenes: Pyrrolidin‐2‐ols as a Source of Cyclic (Alkyl)(Amino)Carbenes
作者:Ayan Das、Benedict J. Elvers、Mithilesh Kumar Nayak、Nicolas Chrysochos、Srinivas Anga、Amar Kumar、D. Krishna Rao、Tharangattu N. Narayanan、Carola Schulzke、Cem B. Yildiz、Anukul Jana
DOI:10.1002/anie.202202637
日期:2022.7.11
The thermal dehydration of secondary alcohols to carbenes and reverse back-hydration are showcased. The in situ generation of cyclic (alkyl)(amino)carbenes through the thermal 1,1-dehydration of secondary pyrrolidin-2-ol alcohols was realized and utilized for various purposes such as the synthesis of transition metal-carbene complexes. This methodology opens a door for further consideration of various