作者:Hwimin Seo、David R. Snead、Khalil A. Abboud、Sukwon Hong
DOI:10.1021/om200602k
日期:2011.11.14
the similarly bulky acyclic diaminocarbenes that show significant distortion from the coplanarity. The Au(I) complexes of AAOCs exhibited high efficiency in the hydroamination of alkenyl ureas. Bulkier AAOC–Au(I) complexes displayed faster reaction rates and higher conversions. The reaction rate, yield, and stereoselectivity observed with the AAOC–Au(I) catalyst were better than those with acyclic diaminocarbene
FURUKAWA N.; FUKUMURA M.; NISHIO T.; OAE S., PHOSPH. AND SULFUR, 1978, 5, NO 2, 231-237
作者:FURUKAWA N.、 FUKUMURA M.、 NISHIO T.、 OAE S.
DOI:——
日期:——
US4160846A
申请人:——
公开号:US4160846A
公开(公告)日:1979-07-10
US4260552A
申请人:——
公开号:US4260552A
公开(公告)日:1981-04-07
Asymmetric Synthesis of Bicyclic Amidines via Rhodium-Catalyzed [2+2+2] Cycloaddition of Carbodiimides
作者:Robert T. Yu、Tomislav Rovis
DOI:10.1021/ja710065h
日期:2008.3.1
A highly enantioselective rhodium-catalyzed [2+2+2] cycloaddition of terminal alkynes and alkenyl carbodiimides has been developed. This reaction demonstrates the feasibility of olefin insertion into carbodiimide-derived metalacycles and provides a new class of chiral bicyclic amidines as the major products. An isonitrile migration process responsible for the formation of the minor cycloadduct can