(R)-2′-amino-[1,1′-binaphthalen]-2-ol, cas is 137848-28-3, it is a common heterocyclic compound, the chiral-catalyst compound, its synthesis route is as follows.,137848-28-3
To a magnetically stirred solution of R-(+)-2-amino-1,1′-binaphthalen-2-ol (0.215g, 0.753mmol) in DMAC (15mL) was slowly added a solution of trans- 1 (0.116 g, 0.378 mmol) in DMAC (10 mL). After the addition was complete, the reaction mixture was stirred in the dark at room temperature for 24 h and then poured into water (300 mL), giving an orange precipitate. The solid was collected by filtration and was then dissolved in CHCl3 (250 mL) and washed with water (3¡Á100 mL) and brine (50 mL). The organic phase was dried over anhydrous sodium sulfate and then concentrated in vacuo to furnish monomer trans-2RR (87% yield) as a bright orange powder. M.p.: >250C (decomposition). 1H NMR (DMSO-d6, 500MHz) delta 9.87 (s, 2H), 9.10 (s, 2H), 8.24-8.28 (m, 2H), 8.13-8.18 (m, 2H), 8.07-8.10 (m, 2H), 8.00-8.05 (m, 2H), 7.93-7.96 (m, 2H), 7.81-7.86 (m, 4H), 7.52-7.59 (m, 6H), 7.46-7.50 (m, 2H), 7.34-7.40 (m, 2H), 7.29-7.33 (m, 2H), 7.20-7.26 (m, 4H), 6.97-7.03 (m, 2H); MS m/e: 805.28 ([M]H+); [alpha]D=(+)207 (c=0.076g/dL, THF).
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Reference£º
Article; Lynch, Joseph G.; Jaycox, Gary D.; Polymer; vol. 55; 16; (2014); p. 3564 – 3572;,
Chiral Catalysts
Chiral catalysts – SlideShare