Benzaldehyde → 5-Benzylidenehydantoin

HRID 67154

반응식

HRID 67154 반응식
[NH:1]1[CH2:7][C:5](=[O:6])[NH:4][C:2]1=[O:3].[CH:8](=O)[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1.C([O-])=O.[NH4+].C(O)=O>>[CH:8](=[C:7]1[NH:1][C:2](=[O:3])[NH:4][C:5]1=[O:6])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1

참가 물질

5

반응물 4

HCID 240BenzaldehydeHCID 284Formic AcidHCID 10006HydantoinHCID 2723923Ammonium formate

생성물 1

HCID 978575-Benzylidenehydantoin수율 91.9%

실험 절차

A mixture of 100 grams (1.0 mole) of hydantoin, 106 grams (1.0 mole) of benzaldehyde, 63 grams (1.0 mole) of ammonium formate, and 230 grams (5.0 moles) of formic acid were held for 3 hours at reflux temperature. After the cooling off, there were obtained 173 grams of 5-benzylidene hydantoin, corresponding to 92% of theory based on hydantoin.

후처리

  1. temperatureat reflux temperature

출처 및 근거

ORD 기록
ord-b37aacc2f732407fb601b0a860bba435
출처 데이터셋
uspto-grants-1982_08
특허 번호
US04345072

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