Crossley Steven W M, Barabé Francis, Shenvi Ryan A
Department of Chemistry, The Scripps Research Institute , La Jolla, California 92037, United States.
J Am Chem Soc. 2014 Dec 3;136(48):16788-91. doi: 10.1021/ja5105602. Epub 2014 Nov 20.
Catalytic amounts of Co(Sal(tBu,tBu))Cl and organosilane irreversibly isomerize terminal alkenes by one position. The same catalysts effect cycloisomerization of dienes and retrocycloisomerization of strained rings. Strong Lewis bases like amines and imidazoles, and labile functionalities like epoxides, are tolerated.
催化量的Co(Sal(tBu,tBu))Cl和有机硅烷可使末端烯烃不可逆地异构化一个位置。相同的催化剂可实现二烯的环异构化和张力环的逆环异构化。该催化剂能耐受胺和咪唑等强路易斯碱以及环氧化物等不稳定官能团。
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