NMRChemicalShiftsofCommon …

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7512 J. Org. Chem. 1997, 62, 7512-7515. NMR Chemical Shifts of Common Laboratory Solvents as Trace Impurities Hugo E. Gottlieb,* Vadim Kotlyar, and Abraham Nudelman*. Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel Received June 27, 1997. In the course of the routine use of NMR as an aid for organic chemistry, a day-to-day problem is the identifica- tion of signals deriving from common contaminants (water, solvents, stabilizers, oils) in less-than-analyti- cally-pure samples. This data may be available in the literature, but the time involved in searching for it may be considerable.

NMRChemicalShiftsofCommon LaboratorySolventsasTraceImpurities HugoE.Gottlieb,*VadimKotlyar,and AbrahamNudelman* DepartmentofChemistry,Bar-IlanUniversity,

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