Diisopropylamine → 2-Cyanoethyl N,N-diisopropylchlorophosphoramidite
Reaction equation
[Cl:1][P:2](Cl)[O:3][CH2:4][CH2:5][C:6]#[N:7].[CH:9]([N:12]([CH:15]([CH3:17])[CH3:16])CC)([CH3:11])[CH3:10].C(NC(C)C)(C)C>ClCCl.CN(C1C=CN=CC=1)C>[CH:9]([N:12]([P:2]([Cl:1])[O:3][CH2:4][CH2:5][C:6]#[N:7])[CH:15]([CH3:17])[CH3:16])([CH3:11])[CH3:10]Participants
6
Procedure
To a solution of 1.9 mL(13.8 mmol) of dichloro(β-cyano)ethoxyphosphine in 40 mL of dichloromethane cooled in an ice-water bath was added 10 mL of diisopropylethylamine, followed by adding 2.3 mL (13.8 mmol) of diisopropylamine under Argon. The reaction b mixture was warmed up to room temperature and stirred for 2 h. After adding 0.1 gm of DMAP into the solution, the reaction mixture is ready for next step reaction.
Workup
- customthe reaction mixture is ready for next step reaction
Sources & evidence
- ORD record
- ord-afa457de7b05476eb5092a73cbd24652
- Source dataset
- uspto-grants-2006_05
- Patent number
- US07045285B1
Reaction notes
Loading…