Toluene 2,4-Diisocyanate → Toluene 2,6-Diisocyanate

HRID 1287190

반응식

HRID 1287190 반응식
C[C:2]1[C:3](=[CH:7][C:8](=[CH:12][CH:13]=1)[N:9]=[C:10]=[O:11])[N:4]=[C:5]=[O:6].[C:14]([O-])(=O)CCCCCCCCCCC.C([O-])(=O)CCCCCCCCCCC.C([Sn+2]CCCC)CCC>C(C(CCCC)CO)C>[CH3:14][C:7]1[C:3]([N:4]=[C:5]=[O:6])=[CH:2][CH:13]=[CH:12][C:8]=1[N:9]=[C:10]=[O:11]

참가 물질

4

반응물 2

HCID 11443Toluene 2,4-DiisocyanateHCID 9809426Di-n-butyldilauryltin

생성물 1

HCID 7040Toluene 2,6-Diisocyanate

시약·촉매·용매 1

HCID 77202-Ethylhexanol촉매

실험 절차

In another reactor, a fully blocked diurethane of 80/20 2,4/2,6-toluene diisocyanate mixture was prepared by slowly adding 87.1 parts of 80/20 toluene diisocyanate to 142 parts of 2-ethylhexanol containing 1 drop of dibutyl tin dilaurate with external cooling to maintain the reaction mixture below 100°C.

후처리

  1. temperaturewith external cooling
  2. temperatureto maintain the reaction mixture below 100°C.

출처 및 근거

ORD 기록
ord-bb0199f241014d3988c45c7257f71960
출처 데이터셋
uspto-grants-1976_10
특허 번호
US03984299

연결된 노트

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