An Ion‐Responsive Pincer‐Crown Ether Catalyst System for Rapid and Switchable Olefin Isomerization

Simple, Chemoselective, Catalytic Olefin Isomerization

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.

nano-rods zno as an efficient catalyst for the synthesis of chromene phosphonates, direct amidation and formylation of amines

چکیده ندارد.

Prevention of undesirable isomerization during olefin metathesis.

1,4-Benzoquinones have been found to prevent olefin isomerization of a number of allylic ethers and long-chain aliphatic alkenes during ruthenium-catalyzed olefin metathesis reactions. Electron-deficient benzoquinones are the most effective additives for the prevention of olefin migration. This mild, inexpensive, and effective method to block olefin isomerization increases the synthetic utility...

FI Catalyst for Polymerization of Olefin

Correction to “Simple, Chemoselective, Catalytic Olefin Isomerization”

Page 16788 and Supporting Information page SI-4. Entry 13 was inadvertently omitted from Table 1 and S.I. Table 1. This entry suggests mechanistic overlap between our alkene isomerization and hydrogen atom transfer radical polymer-ization, more so than entry 12 alone. The complete S.I. Table 1 is shown below. This is an open access article published under an ACS AuthorChoice License, which perm...