255. β-Hydroxyethyl ethers of substituted phenols and related substances
作者:D. C. Motwani、T. S. Wheeler
DOI:10.1039/jr9350001098
日期:——
CHEMICAL COMPOUNDS
申请人:ResMan AS
公开号:US20150094240A1
公开(公告)日:2015-04-02
The present invention relates to novel compounds of polyfunctionalized polyethylene and polypropylene glycols, their synthesis and their use, in particular as tracers in applications related to oil and gas production, and especially as specific markers of various target fluids.
Translational Isomerizations in [2]Catenanes with Unsymmetrically Substituted Resorcinol-Based Tethers
作者:Ronald L. Halterman、David E. Martyn
DOI:10.1021/jo071036d
日期:2007.10.1
The translational isomerizations of nine [2]catenanes (2−10) containing an electron-rich dibenzo-34-crown-10 ether (BPP34C10) interlocked with rings containing an unsymmetric 4-substituted (chloro, ethyl, or hexyl) resorcinol-based tether linking two electron-deficient dipyridyl groups have been studied by variable temperature (VT) 1H NMR spectroscopy. The second symmetric tether between the dipyridyl