Adipic Acid → Trimethylolpropane
Reaction equation
C(O)(=O)C[CH2:3][CH2:4][CH2:5][C:6]([OH:8])=O.C(O)CC[CH2:14][OH:15].C(O)[CH2:18][O:19]CCO>O1CCCC1>[CH2:14]([C:5]([CH2:6][OH:8])([CH2:18][OH:19])[CH2:4][CH3:3])[OH:15]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 150 g of a polyester having a molecular weight of 1,000 and obtained from adipic acid and butane-1,4-diol, 31.8 g of diethylene glycol, 4.47 g of trimethylolpropane and 200 g of tetrahydrofuran was added dropwise to a solution containing 108.75 g of toluylene diisocyanate (isomer ratio 8:2) and 114 g of tetrahydrofuran in the course of 2 hours at 60° C. 1 drop of dibutyl-tin dilaurate was added before the beginning of the addition, and a further drop 1 hour after the addition was complete. The solution was stirred at 60° C. until the NCO content was 1.72%, after which it was cooled to 45° C. and 18.78 g of methylethanolamine were added.
Sources & evidence
- ORD record
- ord-f46dbe6c1e9c4f3dbdcd5ebc93f3c1b2
- Source dataset
- uspto-grants-1986_02
- Patent number
- US04568612
Reaction notes
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