1,3-Dibromobutane → HCID 15067928, compound
Reaction equation
P([O:4][PH:5]([OH:7])=[O:6])(O)=O.C([C:11]([CH:18]([CH3:20])C)([CH:15]([CH3:17])C)C(C)C)(C)C.BrCCC(Br)C>>[CH3:17][CH:15]1[CH2:11][CH2:18][C:20]1([P:5]([OH:4])(=[O:6])[OH:7])[P:5]([OH:7])(=[O:4])[OH:6]Participants
3
Procedure
Using the procedure of Example I, tetraisopropyl methane diphosphonate was converted to tetraisopropyl 2-methyl cyclobutane-1,1 diphosphonate by reaction with 1,3 dibromobutane at 80° C. for 4 hours. 31P NMR (CDCl3) chemical shift 24.1 ppm.
Sources & evidence
- ORD record
- ord-68f1d2b288a04771b06b3a0250f9d7d9
- Source dataset
- uspto-grants-1987_08
- Patent number
- US04687768
Reaction notes
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