Metal-Free Functionalization of N,N-Dialkylanilines via Temporary Oxidation to N,N-Dialkylaniline N-Oxides and Group Transfer
摘要:
A simple set of protocols for the controlled elaboration of anilines is reported allowing access to a diverse array of aminophenols, aminoarylsulfonates, alkylated anilines, and aminoanilines in 29-95% yield in a single laboratory operation from easily isolable, bench-stable N,N-dialkylaniline N-oxides. The introduction of new C-O, C-C, and C-N bonds on the aromatic ring is made possible by a temporary increase in oxidation level and excision of a weak N-O bond.
A compound of the formula
is disclosed as an HIV protease inhibitor. Methods and compositions for inhibiting an HIV infection are also disclosed.
公开了一种具有以下公式的化合物,作为HIV蛋白酶抑制剂。还公开了抑制HIV感染的方法和组合物。
The role of cyclohexadienones in the thermal sigmatropic rearrangements of 2-oxidoanilinium ylides
作者:W. David Ollis、Ratnasamy Somanathan、Ian O. Sutherland
DOI:10.1039/c39810000573
日期:——
Thermal isomerisation of N-allyl-2-oxidoani-linium ylides under mild conditions yields three products which are each formed by two types of competitive pathways; the minor pathway involves a radical pair intermediate and three modes of coupling, and the major pathway involves a collection of concerted sigmatropicrearrangements.
Base catalysed rearrangements involving ylide intermediates. Part 13. Further rearrangements of 2-oxidoanilinium ylides
作者:W. David Ollis、Ratnasamy Somanathan、Ian O. Sutherland
DOI:10.1039/p19810002930
日期:——
The 2-oxidoanilinium ylides (7) rearrange on heating to give the ethers (10) together with the dienones (8) and the phenols (11) for cases where the aromatic ring has a 5-alkyl substituent or a mixture of the dienones (8) and (12) for cases where the aromatic ring is 3,5-disubstituted. A study of the deuteriated ylides (25) shows that these reactions involve competing concerted and radical-pair processes
Polymerizable composition, optical material comprising the composition and method for producing the material
申请人:——
公开号:US20040254258A1
公开(公告)日:2004-12-16
A cured matter obtained by polymerizing and curing a polymerizable composition comprising a compound having at least one episulfide in a molecule is reduced in an odor by adding a perfume to the polymerizable composition comprising the compound having at least one episulfide in a molecule.
A cloudiness of the lens is removed by raising a purity of sulfur to 98% or more.
A reduction in a chlorine content of the sulfur compound described above to 0.1% by weight or less elevates an oxidation resistance and a light fastness of the high refractive index optical material and improves a color tone thereof.
An optical product having a high refractive index and a high-degree transparency is provided by subjecting the composition in advance to deaerating treatment at 0 to 100° C. for one minute to 24 hours under a reduced pressure of 0.001 to 50 torr.