Hydrochloric Acid → HCID 66910011, compound

HRID 2088269Notes

Reaction equation

HRID 2088269 reaction equation
[OH:1][CH2:2][CH:3]1[C:15]2[CH:14]=[C:13]([NH:16]C(OC(C)(C)C)=O)[CH:12]=[CH:11][C:10]=2[C:9]2[C:4]1=[CH:5][C:6]([NH:24]C(OC(C)(C)C)=O)=[CH:7][CH:8]=2.[ClH:32]>O1CCOCC1>[ClH:32].[ClH:32].[OH:1][CH2:2][CH:3]1[C:4]2[CH:5]=[C:6]([NH2:24])[CH:7]=[CH:8][C:9]=2[C:10]2[C:15]1=[CH:14][C:13]([NH2:16])=[CH:12][CH:11]=2

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 66910044HCID 66910044, compound

Product 1

HCID 66910011HCID 66910011, compound

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Conditions

Temperature
0 °C

Procedure

9-Hydroxymethyl-2,7-di(Boc-amino)fluorene (0.39 g, 0.9 mmol) was dissolved in 1,4-dioxane. At 0° C. concentrated HCl (2.5 mL) was added and the reaction was stirred for two hours at 0° C. and for one hour at room temperature. The reaction solvents were removed at reduced pressure (45° C.). The product was dissolved in methanol and evaporated (2 times). The product was dissolved in methanol (8 mL) and precipitated by the slow addition of diethyl ether and cooling (repeat). The product was a red-orange solid (0.25 g, 91%) that showed a single spot by TLC (chloroform/methanol/acetic acid 85:15:3, ninhydrin stain). 1H-NMR (CD3OD): δ (ppm) 8.1 (d, 2H, Ar); 7.8 (s, 2H, Ar); 7.5 (d, 2H, Ar); 4.3 (t, 1H, CH); 4.0 (d, 2H, CH2)

Workup

  1. customThe reaction solvents were removed at reduced pressure (45° C.)
  2. dissolutionThe product was dissolved in methanol
  3. customevaporated (2 times)
  4. dissolutionThe product was dissolved in methanol (8 mL)
  5. customprecipitated by the slow addition of diethyl ether
  6. temperaturecooling (repeat)

Sources & evidence

ORD record
ord-f9f968d773904a7dae2f6abb3443135c
Source dataset
uspto-grants-2013_05
Patent number
US08435505B2

Reaction notes

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