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Toluene → 4-[(5S*,9R*)-7-Benzyl-3-(3,5-dichlorophenyl)-1-methyl-2,4-dioxo-1,3,7-triazaspiro[4.4]non-9-yl]-benzonitrile

HRID 456720
Notes
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Reaction equation

HRID 456720 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([N:9]2[C:13](=[O:14])/[C:12](=[CH:15]\[C:16]3[CH:23]=[CH:22][C:19]([C:20]#[N:21])=[CH:18][CH:17]=3)/[N:11]([CH3:24])[C:10]2=[O:25])[CH:5]=[C:6]([Cl:8])[CH:7]=1.[CH2:26]1N2CN3CN(C2)[CH2:28][N:27]1[CH2:34]3.C(NCC(O)=O)[C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1.C1(C)C=CC=CC=1>CN1CCCC1=O>[CH2:26]([N:27]1[CH2:34][C@@H:15]([C:16]2[CH:17]=[CH:18][C:19]([C:20]#[N:21])=[CH:22][CH:23]=2)[C@:12]2([N:11]([CH3:24])[C:10](=[O:25])[N:9]([C:4]3[CH:5]=[C:6]([Cl:8])[CH:7]=[C:2]([Cl:1])[CH:3]=3)[C:13]2=[O:14])[CH2:28]1)[C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 1140TolueneHCID 4101HexamethylenetetramineHCID 869652-(Benzylamino)acetic acidHCID 10270593(E)-4-((1-(3,5-Dichlorophenyl)-3-methyl-2,5-dioxoimidazolidin-4-ylidene)methyl)benzonitrile2×

Product 1

HCID 119945114-[(5S*,9R*)-7-Benzyl-3-(3,5-dichlorophenyl)-1-methyl-2,4-dioxo-1,3,7-triazaspiro[4.4]non-9-yl]-benzonitrile

Reagents, catalysts & solvents 1

HCID 13387N-methyl-2-pyrrolidoneSolvent

Conditions

Temperature
140 °C

Procedure

A mixture of (E)-4-((1-(3,5-dichlorophenyl)-3-methyl-2,5-dioxoimidazolidin-4-ylidene)methyl)benzonitrile (1.05 g, 2.82 mmol), hexamethylenetetramine (0.395 g, 2.82 mmol), N-benzylglycine (1.17 g, 7.05 mmol), toluene (5 ml), and 1-methyl-2-pyrrolidinone (NMP, 10 ml) was heated to 140° C. The extent of reaction was monitored by HPLC. After 72 hours, the reaction had stopped short of completion. The ratio of product to starting material ((E)-4-((1-(3,5-dichlorophenyl)-3-methyl-2,5-dioxoimidazolidin-4-ylidene)methyl)benzonitrile) was 1.36:1. Mass spectra of the mixture indicated the presence of the desired product. The mixture was washed with water and extracted into toluene. The impure product was obtained as an oil. Comparison of the product obtained to authentic material was made by HPLC. The ratio of the desired (5S, 9R) isomer to the undesired was 19:1.

Workup

  1. customThe extent of reaction

Sources & evidence

ORD record
ord-2d6bc040ace94bfc83405eb1ce3346cd
Source dataset
uspto-grants-2007_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07186727B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes