Tag «syn-3»

syn-3,5-Dihydroxy Hexanoate

It’s only fair to share…   pure 8 (2.4 g, HPLC purity, 92%). [α]D25 = −41.3 (c = 1.0, CHCl3), >99.5% de.(8g, 9) 1H NMR (CDCl3, 400 MHz), δ/ppm: 1.47 (s, 9H), 1.71–1.75 (m, 2H), 2.42–2.44 (m, 2H), 2.54–2.56 (m, 2H), 3.71 (brs, 2H), 4.18–4.22 (m, 1H), 4.26–4.31 (m, 1H).   t-butyl 6-cyano-(5R)-hydroxy-3-oxo-hexanoate t-Butyl-6-cyano-(3R,5R)-dihydroxyhexanoate is an advanced chiral precursor for the …