Calcium Carbonate → (4-(Hydroxymethyl)phenyl)(phenyl)methanone

Beteiligte Stoffe

Reaktionsschritte

To a suspension of 2 (6.0 g, 22 mmol) in a mixture of 1,4 dioxane (60 ml) and water (60 ml) was added calcium carbonate (10.8 g, 110 mmol). The mixture was heated to reflux for 18 h, concentrated in vacuo and the residue portioned between DCM and water. The organic layer was collected, dried over MgSO4, concentrated in vacuo then recrystalised from diethyl ether to furnish 3 (4.1 g, 89%) as a white solid; M.P. 59-61° C. (Lit 61-64° C.); δH (CDCl3) 3.14 (s, 1H, CH2OH), 4.75 (s, 2H, CH2OH), 7.41-7.49 (m, 4H, 3-, 3′-, 5-, 5′-H), 7.54-7.58 (m, 1H, 4′-H), 7.72-7.76 (m, 4H, 2-, 2′-, 6-, 6′-H) ppm; δC (CDCl3) 64.4 (CH2OH), 126.4 (3′-, 5′-C), 128.3 (3-, 5-C), 130.0, 130.4 (2-, 2′-, 6-, 6′-C), 132.5 (4′-C), 136.4, 137.5 (1-, 1′-C), 140.0 (4-C), 196.9 (Ar2C═O) ppm; νmax (thin film) 3406, 3058, 2921, 1655, 1279 cm−1; m/z (ES) 211 ([M−H]− 100%), 183 (45%).

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