[EN] SILYLETHYNYL PENTACENE COMPOUNDS AND COMPOSITIONS AND METHODS OF MAKING AND USING THE SAME<br/>[FR] COMPOSÉS DE SILYLÉTHYNYLE PENTACÈNE ET COMPOSITIONS ET PROCÉDÉS DE PRODUCTION ET D'UTILISATION DE CEUX-CI
申请人:3M INNOVATIVE PROPERTIES CO
公开号:WO2009155106A1
公开(公告)日:2009-12-23
Silylethynyl pentacenes and compositions containing silylethynyl pentacenes are disclosed. Exemplary pentacene compounds have 6, 13 -silylethynyl substitution with one or more groups (e.g., R, R' and R") covalently bonded to each Si atom of the silylethynyl groups. Methods of making and using silylethynyl pentacenes and compositions containing silylethynyl pentacenes are also disclosed. Substrates and devices comprising the silylethynyl pentacenes and compositions are also disclosed.
Nitroxide chemistry. Part X. Reactions of NN-bistrifluoromethyl-amino-oxyl with alkyltrihalogenosilanes and vinylsilanes; rearrangement of (1 -NN-bistrifluoromethylamino-oxyalkyl)silanes
作者:Robert N. Haszeldine、David J. Rogers、Anthony E. Tipping
DOI:10.1039/dt9760001056
日期:——
The reactions of the oxyl (CF3)2N·O˙ with various alkyltrichlorosilanes and alkyltrifluorosilanes show that the α position of the alkyl group is deactivated towards radical attack and the effect is more pronounced with alkyltrichlorosilanes. A novel rearrangement of type N·O·C·Si→N·C·O·Si occurs on heating (1-NN-bistrifluoromethyl-amino-oxyalkyl)silanes, and the ease of rearrangement is in the order
Rhodium‐Catalyzed Synthesis of Chiral Monohydrosilanes by Intramolecular C−H Functionalization of Dihydrosilanes
作者:Wenpeng Ma、Li‐Chuan Liu、Kun An、Tao He、Wei He
DOI:10.1002/anie.202013041
日期:2021.2.19
The preparation of chiral monohydrosilanes remains a rarely achieved goal. To this end a Rh‐catalyzed desymmetrization of dihydrosilanes by way of intramolecular C(sp2)−H functionalization under simple and mild conditions has now been developed. This method provides easy access to a broad range of chiral monohydrosilanes in good yields with excellent enantioselectivities (up to >99 % ee). The resulting
(with silicon-stereogenic silanes) and enantioselective (with achiral silanes) Si–O couplings of azine donor-functionalized alcohols. The limitation, that is, the requirement of a nitrogen donor atom, prompted us to seek equally useful donor groups. Oxime ethers were identified as a suitable alternative, and we describe herein the preparation of a series of oxime ether-functionalized alcohols. To assess
synthesized and studied for their olfactoryproperties. All of the silanes studied exhibit at least one of the main patchouli odor descriptors ‘woody,’ ‘earthy,’ and ‘camphoraceous,’ and some even exhibit all of them. The silanes MeR2SiC(OH)Me2 (12) and R3SiC(OH)Me2 (14) (R=cyclopropyl) were found to resemble natural patchouli oil most closely, with an even lower odor threshold than the natural lead