Ring expansion by in situ tethering of hydroxy azides to ketones: The boyer reaction
作者:Vijaya Gracias、Kristine E. Frank、Gregory L. Milligan、Jeffrey Aubé
DOI:10.1016/s0040-4020(97)01012-0
日期:1997.12
under the action of protic or Lewis acids such as BF3·OEt2. The reaction appears to succeed due to the initial formation of a hemiketal, which then renders the attack of azide on an oxoniumion intramolecular. The scope of this reaction vis à vis ketone and hydroxyalkyl azide structure is discussed.
[EN] N-ALKYL LACTAM ETHERS, AND COMPOSITIONS AND USES THEREOF<br/>[FR] ÉTHERS DE N-ALKYL-LACTAMES, COMPOSITIONS LES CONTENANT ET UTILISATIONS
申请人:ISP INVESTMENTS INC
公开号:WO2012068001A1
公开(公告)日:2012-05-24
Described is a class of symmetrical and asymmetrical N-alkyl lactam ethers. One preferred ether is bis-N-ethyl pyrrolidone ether. Preferred compositions and uses of the ethers are in performance chemicals, personal care, and pharmaceutical fields, where they function a variety of roles, including as a solvent, solubilizer, freezing point depressor, diluent, extracting agent, cleaning agent, degreaser, absorbent and/or dispersion agent.