Benzaldehyde → 5-Benzylidenehydantoin

HRID 67154

反応式

HRID 67154 の反応式
[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

参加物

5

反応物 4

HCID 240BenzaldehydeHCID 284Formic AcidHCID 10006HydantoinHCID 2723923Ammonium formate

生成物 1

HCID 978575-Benzylidenehydantoin収率 91.9%

実験手順

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.

後処理

  1. temperatureat reflux temperature

出典と根拠

ORDレコード
ord-b37aacc2f732407fb601b0a860bba435
出典データセット
uspto-grants-1982_08
特許番号
US04345072

関連ノート

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