Nuclear magnetic resonance reagents

Nuclear Magnetic Resonance Shift Reagents (see Table 19.12)... 

R. Sievers,in Nuclear Magnetic Resonance Shift Reagents (R. Sievers, ed.), Academic Press, New York, NY (1973). 

Borowitz, I.J., Yee, K.C., and Crouch, R.K., Determination of stereochemistry in vinyl phosphorylated species by nuclear magnetic resonance shift reagents. Revised mechanistic pathways for the Perkow reaction, /. Org. Chem., 38,1713, 1973. 

Some Other Reagents for Nuclear Magnetic Resonance Analysis... 

Nuclear magnetic resonance ( H and C) chiral shift reagent chiral derivatizing agent chiral solvating agent. 

C. Nuclear Magnetic Resonance Conformational study of 3-substituted thietane 1-oxides. Lanthanide shift reagent approach. ... 

Hydrocarbons may be differentiated by their solubility in sulphuric acid since unsaturated hydrocarbons are soluble in concentrated sulphuric acid as are those arenes which are readily sulphonated, whereas the saturated alkanes and lesser reactive arenes are insoluble in this reagent. The presence of an alkene, alkyne or arene is usually readily apparent from an inspection of the infrared and nuclear magnetic resonance spectra, the characteristic features of which are fully discussed in Sections 5.2., 5.3 and 6.1 respectively and in Chapter 3. 

Reagents were obtained from commercial sources and used as received. V-Boc anthranilic acid 13 was purchased from Advanced Chem-Tech and V-Boc-methyl anthranilic acid 14 was purchased from Aldrich. Proton nuclear magnetic resonance ( H NMR) spectra were run at 500 MHz. LC/MS analysis was performed using a Ci8 Hypersil BDS 3-prn 2.1 x 50-mm column (UV 220 nm) with a mobile phase of 0.1% TFA in CH3CN/H20, gradient from 10% CH3CN to 100% over 5 or 15 min and APcI ionization. 

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