Methanesulfonamide → HCID 46838209, compound

HRID 1399551Notes

Reaction equation

HRID 1399551 reaction equation
C([Si]([O:8]/[C:9](/[C:12]1[C:21]2[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=2)[CH:15]=[CH:14][CH:13]=1)=[CH:10]\[CH3:11])(C)C)(C)(C)C.CC[C@@H]1[C@@H]2C[C@H]([C@@H](OC3C4C(=CC=CC=4)C(O[C@@H](C4C=CN=C5C=4C=C(OC)C=C5)[C@@H]4N5C[C@H](CC)[C@@H](CC5)C4)=NN=3)C3C=CN=C4C=3C=C([O:43]C)C=C4)N(CC2)C1.CS(N)(=O)=O>C(O)(C)(C)C.O>[OH:43][C@H:10]([CH3:11])[C:9]([C:12]1[C:21]2[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=2)[CH:15]=[CH:14][CH:13]=1)=[O:8]

Participants

5

Reactant 3

HCID 72879MethanesulfonamideHCID 112172021,4-Bis(dihydroquinidine)phthalazineHCID 46838068HCID 46838068, compound

Product 1

HCID 46838209HCID 46838209, compoundYield 38.3%

Reagents, catalysts & solvents 1

HCID 714019492-Methylpropan-2-ol--water (1/1)Solvent

Procedure

Compound 10h was synthesized by a procedure similar to that described for (R)-10a using (Z)-tert-butyl(1-(naphthalen-1-yl)prop-1-enyloxy)dimethylsilane, (9h, 4.58 g, 0.015 mol), AD-mix-β (21.4 g), and CH3SO2NH2 (1.5 g, 0.0158 mol) in tert-butyl alcohol-water (60 mL:60 mL). The reaction was quenched with sodium sulfite (15.3 g). After purification by column chromatography on silica gel, 1.15 g (38%) of the title product was isolated plus 2.1 g of starting olefin was recovered, raising the effective yield to 70%: [α]20D +140.2° (c 3.2, CHCl3); 1H NMR (CDCl3) δ 8.51-8.46 (m, 1H), 8.04 (d, 1H, J=8.3 Hz), 7.93-7.87 (m, 1H), 7.80-7.75 (m, 1H), 7.66-7.48 (m, 3H), 5.30-5.17 (m, 1H), 3.96 (d, 111, J=5.8 Hz), 1.36 (d, 3H, J=7.1 Hz); 13C NMR (CDCl3) δ 205.7, 134.1, 133.5, 132.5, 130.7, 128.7, 128.4, 127.7, 126.9, 125.5, 124.4, 71.2, 21.3; LCMS (ESI) m/z 201.2 [(M+H)+, M=C13H12O2].

Workup

  1. customCompound 10h was synthesized by a procedure similar to
  2. customThe reaction was quenched with sodium sulfite (15.3 g)
  3. customAfter purification by column chromatography on silica gel

Sources & evidence

ORD record
ord-f55a5d376191408eac8a3114762a6a84
Source dataset
uspto-grants-2014_12
Patent number
US08906908B2

Reaction notes

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