You are here: Home - Nike Air Max 2014 Red chloride in 98 yield In this paper
Nike Air Max 2014 Red chloride in 98 yield In this paper
Treatment of 2-trimethylsilylethyl 2346-tetra-O-acetyl-β-D-glucopy ranoside (-1) with trimethylsilyl trifluoromethanesulfonate trifluoromethanesulfonic acid or borontrifluoride etherate in the presence ofdimethoxymethane gave methoxymethyl 2346-tetra-O-acetyl-β-D-glucopyranoside in 54 62 and 66% yield respectively. In the absence of dimethoxymethane trimethylsilyl 2346-tetra-O-acetyl-β-D-glucopyranoside was formed in 78% yield. Treatment of I with 11-dichloromethylmethyl ether in the presence of zinc chloride gave 2346-tetra-O-acetyl-α-D-glucopyranosyl chloride in 98% yield. In this paper, we show that it should be possible to measure the rate Nike Air Max 2014 Red of rotation of the plane of polarization of an ultrasonic wave passing through a sample with flat and parallel ends, by making detailed Nike Air Max 2012 Mens Uk studies of the effects of such rotations on the mechanical resonances of the sample. The plane of polarization is expected to rotate, for example, when the sound wave is passing through pure metal single crystals in the presence of external magnetic fields. Measurements of such rotations can give useful information about the physical properties of the metal.