Phosgene → HCID 86621463, compound
Reaction equation
[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16]([NH:18][C:19]([CH3:26])([CH3:25])[CH2:20][S:21](O)(=[O:23])=[O:22])=[O:17])[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1.C(Cl)([Cl:29])=O>>[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16](=[O:17])[NH:18][C:19]([CH3:26])([CH3:25])[CH2:20][S:21]([Cl:29])(=[O:23])=[O:22])[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1Participants
3
Procedure
(2-Chlorosulfonyl-1,1-dimethyl-ethyl)-carbamic acid 9H-fluoren-9-ylmethyl ester was prepared by an analogous procedure as described in example 26v) starting from 457 mg (1.2 mmol) 2-(9H-fluoren-9-ylmethoxycarbonylamino)-2-methyl-propane-1-sulfonic acid and 2.3 ml (3.6 equiv.) phosgene (20% in toluene). (2-Chlorosulfonyl-1,1-dimethyl-ethyl)-carbamic acid 9H-fluoren-9-ylmethyl ester was obtained in crude form as a colorless oil. Yield: 503 mg
Workup
- custom(2-Chlorosulfonyl-1,1-dimethyl-ethyl)-carbamic acid 9H-fluoren-9-ylmethyl ester was prepared by an analogous procedure
Sources & evidence
- ORD record
- ord-bbc31ea1ec034b3691efebfc25752e02
- Source dataset
- uspto-grants-2012_01
- Patent number
- US08088925B2
Reaction notes
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