Selective hydroboration of terminal alkenes in the presence of aldehydes and ketones
作者:George W. Kabalka、Su Yu、Nan-Sheng Li
DOI:10.1016/s0040-4039(97)01221-5
日期:1997.8
The hydroboration of olefinic ketones and aldehydes with dicyclohexylborane gives the corresponding hydroxy aldehydes and ketones in good yields after oxidation with sodium perborate.
Selective hydroboration of alkenes and alkynes in the presence of aldehydes and ketones
作者:George W Kabalka、Su Yu、Nan-Sheng Li
DOI:10.1139/v98-042
日期:1998.6.1
reactions of terminal alkenes in the presence of ketones or aldehydes with a variety of borane reagents have been investigated. It was found that the selective hydroboration of a terminal alkene in the presence of a ketone or an aldehyde is most efficient when dicyclohexylborane is used as the hydroborating agent. The hydroboration of olefinic ketones and olefinic aldehydes with dicyclohexylborane generates
Limonene-based, non-halogenated flame retardants for polymeric applications
申请人:International Business Machines Corporation
公开号:US10556919B2
公开(公告)日:2020-02-11
A limonene-based flame-retardant compound, a method of making a flame-retardant polymer, and an article of manufacture comprising a material that includes a limonene-based flame-retardant compound. In an embodiment, the method includes forming a limonene-based derivative; forming a phosphorus-based flame-retardant molecule; reacting the limonene-based derivative with the phosphorus-based flame-retardant molecule to form a limonene-based flame-retardant compound; and forming a flame-retardant polymer from the limonene-based flame-retardant compound. In some embodiments, the limonene-based flame-retardant compound has variable functionality including vinyl, epoxide, methylene bridges, and thioethers.