反应详情

A mixture of 1.2 g of 2-[3-oxopropylsulfonyl)-4-n-propoxy-5-benzyloxyphenyl]-5-(3,4,5-trimethoxyphenyl)tetrahydrofuran (STEP J), 400 mg 10% Pd/C, 1-2 drops of acetic acid in 100 mL of ethyl acetate was stirred under H2 at 40 psi for 45 minutes. The reaction mixture was filtered over a bed of celite and evaporated in vacuo to yield the title compound: NMR(200 MHz, CDCl3) δ 1.10(t, CH2CH2CH3), 1.92(m, CH2CH2CH3), 1.9-2.6(m, 3-CH2 and 4-CH2), 2.40(s, CH3C(O)CH2), 3.86(s, OCH3), 3.90(s, 2 OCH3), 4.12(t, OCH2CH2CH3), 4.42(s, CH3C(O)CH2), 5.10-5.28(m, 2-CH and 5-CH), 6.64(s, 5-ArH), 7.35 and 7.47(2 d, 2-ArH).

1. filtrationThe reaction mixture was filtered over a bed of celite
2. customevaporated in vacuo