2-Methyl-2-butene → HCID 86749615, compound

HRID 1734369Notes

Reaction equation

HRID 1734369 reaction equation
[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH2:27][CH:26]([CH3:31])[CH2:25][CH:24]([O:32][CH3:33])[CH:23]2[O:34][C:19]([OH:38])([CH:20]([CH3:37])[CH2:21][CH:22]2[O:35][CH3:36])[C:18](=[O:39])[C:17](=[O:40])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:41])[O:9][CH:8]([C:42]([CH3:62])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([O:50][CH2:51][C:52]3[CH:57]=[CH:56][C:55]([CH:58]=[O:59])=[CH:54][CH:53]=3)[CH:46]([O:60][CH3:61])[CH2:45]2)[CH:7]([CH3:63])[CH:6]([O:64][Si:65]([C:68]([CH3:71])([CH3:70])[CH3:69])([CH3:67])[CH3:66])[CH2:5][C:4]1=[O:72])[CH3:2].CC(=CC)C.Cl([O-])=[O:79].[Na+].P([O-])(O)(O)=O.[Na+]>C(O)(C)(C)C>[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH2:27][CH:26]([CH3:31])[CH2:25][CH:24]([O:32][CH3:33])[CH:23]2[O:34][C:19]([OH:38])([CH:20]([CH3:37])[CH2:21][CH:22]2[O:35][CH3:36])[C:18](=[O:39])[C:17](=[O:40])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:41])[O:9][CH:8]([C:42]([CH3:62])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([O:50][CH2:51][C:52]3[CH:53]=[CH:54][C:55]([C:58]([OH:79])=[O:59])=[CH:56][CH:57]=3)[CH:46]([O:60][CH3:61])[CH2:45]2)[CH:7]([CH3:63])[CH:6]([O:64][Si:65]([C:68]([CH3:69])([CH3:70])[CH3:71])([CH3:67])[CH3:66])[CH2:5][C:4]1=[O:72])[CH3:2]

Participants

6

Reactant 4

HCID 105532-Methyl-2-buteneHCID 23668197Sodium ChloriteHCID 23672064Monosodium phosphateHCID 86749616HCID 86749616, compound

Product 1

HCID 86749615HCID 86749615, compoundYield 84.7%

Reagents, catalysts & solvents 1

HCID 6386tert-ButanolSolvent

Procedure

To a solution of 17-ethyl-1-hydroxy-14-(tert-butyldimethylsiloxy)-12-[2'-(4"-(p-formylbenzyloxy)-3"-methoxycyclohexyl)1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9 ]octacos-18-ene-2,3,10,16-tetraone (50 mg) in tert-butanol (1.0 mL) was added 2-methyl-2-butene (250 mL) followed by 0.5 mL of an aqueous solution of sodium chlorite (41 mg) and sodium dihydrogen phosphate (48 mg), and the mixture stirred at room temperature. After 1.5 hours, the mixture was concentrated and redissolved in ethyl acetate:hexane (1:1) and washed with water. The organic portion was dried over sodium sulfate, and the concentrate purified by flash chromatography on silica gel (ethyl acetate:hexane (4:1)+1% methanol+0.5% acetic acid) to give the title compound (43 mg). 1H NMR consistent with the desired structure.

Workup

  1. concentrationthe mixture was concentrated
  2. dissolutionredissolved in ethyl acetate:hexane (1:1)
  3. washwashed with water
  4. dry with materialThe organic portion was dried over sodium sulfate
  5. customthe concentrate purified by flash chromatography on silica gel (ethyl acetate:hexane (4:1)+1% methanol+0.5% acetic acid)

Sources & evidence

ORD record
ord-89dec72705064a24bdaa736b1b91ad8a
Source dataset
uspto-grants-1996_07
Patent number
US05532248

Reaction notes

Loading…