Coupling reaction between 4-t-butyl-o-benzoquinone and methyl linoleate

Crystal structure of methyl 5-acetamido-2-t-butyl-2-methyl-1,3-benzodioxole-4-carboxylate.

1,3-benzodioxle-4-carboxylic acid] was designed as a novel class of chiral fluorometric agents.1 The chiral agent and the analogues have been conveniently applied to enantiomer analyses of various bio-molecules using HPLC and circular dichroism.2 We recently extended the molecular design of (S)TBMB carboxylic acid to chiral nitrobenzoic acids possessing the asymmetric 1,3-benzodioxole.3 The chi...

Reactions of Stable N-Heterocyclic Silylenes with Ketones and 3,5-Di-tert-butyl-o-benzoquinone

Silylenes are silicon analogues of carbenes and exist with neutral divalent silicon atoms. The first stable N-heterocyclic silylene (NHSi) was reported byWest et al., in 1994. Since then, many stable NHSis d,3 and other silylenes have been isolated. The reactivity pattern of NHSis is quite comparable with that of the N-heterocyclic carbenes (NHCs), where the latter led to many applications in c...

o-Benzoquinone dioxime

The title compound, C(6)H(6)N(2)O(2), was obtained as a product of an in vitro study of the metabolism of benzofuroxan. The molecule exhibits a amphi configuration of the oxime groups C=N-OH. One oxime group is involved in the formation of a strong intra-molecular O-H⋯N hydrogen bond, while another links mol-ecules into zigzag chains along the c axis via inter-molecular O-H⋯N hydrogen bonds.

Thermally activated methyl and t-butyl group reorientation in solids.

tert-Butyl 2-methyl-2-(4-methyl­benzo­yl)propanoate

The title compound, C(16)H(22)O(3), is bent with a dihedral angle of 75.3 (1)° between the mean planes of the benzene ring and a group encompassing the ester functionality (O=C-O-C). In the crystal, the mol-ecules are linked into infinite chains held together by weak C-H⋯O hydrogen-bonded inter-actions between an H atom on the benzene ring of one mol-ecule and an O atom on the ketone functional...