Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: [C:1]([NH2:7])(=[O:6])[CH2:2][C:3]([CH3:5])=[O:4].O.[OH-].[K+].[CH2:11](Br)[CH3:12]>CO>[CH2:11]([CH:2]([C:3]([CH3:5])=[O:4])[C:1]([NH2:7])=[O:6])[CH3:12]
Reactant: CC(=O)CC(N)=O
Reactant: CCBr
Agent: [K+]
Agent: [OH-]
Solvent: O
Solvent: CO
Product: CCC(C(C)=O)C(N)=O
Temperature: 25 °C
Yield: 52.4 %

Procedure:
To a 500 mL, 5-necked flask, equipped with a circulating jacket, a thermometer, a nitrogen blanket line atop a condenser, an addition funnel, a syringe pump, and a mechanical stirrer, were charged 101.1 g of acetoacetamide (1.00 mol), 100 mL of deionized water and 100 g of methanol. The mixture was stirred at ambient temperature until all solids were dissolved. A 45% aqueous potassium hydroxide solution (99.6 g, 0.80 mol) was then added to the above solution through the addition funnel over a period of 5 minutes. The resulting mixture was stirred for 30 minutes and then cooled to 15° C. Ethyl bromide (130.8 g, 1.20 mol) was added to the mixture through the syringe pump over a period of 30 minutes. The resulting mixture was stirred at 15° C. for 16 hours. All volatiles were then removed at 60° C./20 mmHg. The solid residue was dissolved in 300 mL of water and extracted with chloroform. A total of six chloroform extractions were performed (60 mL+5×200 mL). The first extraction contained a high level of 2,2-diethylacetoacetamide and was discarded. The remaining extraction solutions were combined. After chloroform was removed in vacuo, 67.7 g of 2-ethylacetoacetamide was obtained. Crude yield: 66% (based on KOH charge).
Reaction SMILES: [Si:1]([O:18][CH2:19][C:20]1[C:25]([N:26]2[CH2:31][C@H:30]([CH3:32])[O:29][C@H:28]([CH3:33])[CH2:27]2)=[C:24]([F:34])[C:23]([F:35])=[CH:22][CH:21]=1)([C:14]([CH3:17])([CH3:16])[CH3:15])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CON(C)[C:39]([C:41]1[CH:45]=[C:44]([CH3:46])[O:43][N:42]=1)=[O:40]>>[Si:1]([O:18][CH2:19][C:20]1[C:25]([N:26]2[CH2:31][C@H:30]([CH3:32])[O:29][C@H:28]([CH3:33])[CH2:27]2)=[C:24]([F:34])[C:23]([F:35])=[C:22]([C:39]([C:41]2[CH:45]=[C:44]([CH3:46])[O:43][N:42]=2)=[O:40])[CH:21]=1)([C:14]([CH3:16])([CH3:17])[CH3:15])([C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1
Reactant: CON(C)C(=O)c1cc(C)on1
Reactant: C[C@@H]1CN(c2c(CO[Si](c3ccccc3)(c3ccccc3)C(C)(C)C)ccc(F)c2F)C[C@H](C)O1
Product: Cc1cc(C(=O)c2cc(CO[Si](c3ccccc3)(c3ccccc3)C(C)(C)C)c(N3C[C@@H](C)O[C@@H](C)C3)c(F)c2F)no1

Procedure:
Starting materials: (2R,6S)-4-[6-({[tert-butyl(diphenyl)silyl]oxy}methyl)-2,3-difluorophenyl]-2,6-dimethylmorpholine (Intermediate 3) and N-methoxy-N,5-dimethyl-1,2-oxazole-3-carboxamide
Reaction SMILES: [O:1]1[CH2:16][CH:2]1[CH2:3][O:4][C:5]1[CH:13]=[C:12]([CH2:14][OH:15])[CH:11]=[C:10]2[C:6]=1[CH:7]=[CH:8][NH:9]2.[C:17](Cl)(=[O:22])[C:18]([CH3:21])([CH3:20])[CH3:19]>N1C=CC=CC=1>[O:1]1[CH2:16][CH:2]1[CH2:3][O:4][C:5]1[CH:13]=[C:12]([CH2:14][O:15][C:17](=[O:22])[C:18]([CH3:21])([CH3:20])[CH3:19])[CH:11]=[C:10]2[C:6]=1[CH:7]=[CH:8][NH:9]2
Reactant: CC(C)(C)C(=O)Cl
Reactant: OCc1cc(OCC2CO2)c2cc[nH]c2c1
Solvent: c1ccncc1
Product: CC(C)(C)C(=O)OCc1cc(OCC2CO2)c2cc[nH]c2c1
Temperature: 0 °C

Procedure:
8.7 g. 4-(2,3-epoxypropoxy)-6-hydroxymethyl-indole (cf. the preparation of the starting material in Example 15) were dissolved in 50 ml. anhydrous pyridine. To this solution were added dropwise, while stirring and cooling to 5° - 10° C., 5 ml. pivalic acid chloride, 1.5 - 2 hours after the ending of the addition, the reaction mixture was poured into ice water. The aqueous phase was extracted 3 or 4 times with diethyl ether. The ethereal extract was successively washed with 1N sulfuric acid, a saturated aqueous solution of sodium bicarbonate and water, then dried, treated with active charcoal and fullers' earth and subsequently evaporated. The crude (4-(2,3-epoxypropoxy)-6-pivaloyloxymethyl-indole thus obtained (12.5 g.; about 100% of theory) was further reacted without further purification.
Reaction SMILES: [NH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[NH:8][C:9]1[CH:10]=[CH:11][C:12]2[C:18](=[O:19])[C:17]3[CH:20]=[CH:21][CH:22]=[C:23]([O:24][CH2:25][C@H:26]4[CH2:30][O:29]C(C)(C)[O:27]4)[C:16]=3[CH2:15][CH2:14][C:13]=2[CH:33]=1.O.C1(C)C=CC(S(O)(=O)=O)=CC=1>CO.O>[NH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[NH:8][C:9]1[CH:10]=[CH:11][C:12]2[C:18](=[O:19])[C:17]3[CH:20]=[CH:21][CH:22]=[C:23]([O:24][CH2:25][C@H:26]([OH:27])[CH2:30][OH:29])[C:16]=3[CH2:15][CH2:14][C:13]=2[CH:33]=1
Reactant: CC1(C)OC[C@H](COc2cccc3c2CCc2cc(Nc4ccccc4N)ccc2C3=O)O1
Agent: Cc1ccc(S(=O)(=O)O)cc1
Solvent: CO
Solvent: O
Product: Nc1ccccc1Nc1ccc2c(c1)CCc1c(OC[C@H](O)CO)cccc1C2=O
Yield: 40 %

Procedure:
For the synthesis of the title compound, 0.10 g (0.225 mmol) of (S)-8-(2-aminophenylamino)-1-(2,2-dimethyl-[1,3]dioxolan-4-ylmethoxy)-10,11-dihydrodibenzo[a,d]cyclohepten-5-one and 0.0537 g (0.282 mmol) of p-toluenesulfonic acid monohydrate in 6 ml of methanol and 1.5 ml of water are reacted by method N. C24H24N2O4 (Mr=404.47); yield: 40%
Reaction SMILES: [F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[N:9]1[CH2:14][CH2:13][NH:12][CH2:11][CH2:10]1.Cl[C:16]1[CH:17]=[CH:18][C:19]2[N:20]([C:22]([C:25]([F:28])([F:27])[F:26])=[N:23][N:24]=2)[N:21]=1>>[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[N:9]1[CH2:10][CH2:11][N:12]([C:16]2[CH:17]=[CH:18][C:19]3[N:20]([C:22]([C:25]([F:26])([F:28])[F:27])=[N:23][N:24]=3)[N:21]=2)[CH2:13][CH2:14]1
Reactant: FC(F)(F)c1nnc2ccc(Cl)nn12
Reactant: Fc1ccc(N2CCNCC2)c(F)c1
Product: Fc1ccc(N2CCN(c3ccc4nnc(C(F)(F)F)n4n3)CC2)c(F)c1

Procedure:
A mixture of 1-(2,4-difluorophenyl)piperazine and 6-chloro-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine was allowed to react by General Synthetic Method 3. The crude product was purified by hplc using a Waters XTerra C18 column (5μ silica, 19 mm diameter, 100 mm length) eluted with decreasingly polar mixtures of water (containing 0.1% aqueous ammonia) and acetonitrile as eluents to give 6-[4-(2,4-difluorophenyl)piperazin-1-yl]-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine.
Reaction SMILES: [C:1]([NH:3][C:4]([NH:6][CH2:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)=[NH:5])#[N:2].[ClH:14].[CH2:15]([NH2:27])[CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH3:26]>C1(C)C=C(C)C=C(C)C=1>[ClH:14].[CH2:7]([NH:6][C:4]([NH:3][C:1]([NH:27][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH3:26])=[NH:2])=[NH:5])[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1
Reactant: CCCCCCCCCCCCN
Reactant: N#CNC(=N)NCc1ccccc1
Agent: Cl
Solvent: Cc1cc(C)cc(C)c1
Product: CCCCCCCCCCCCNC(=N)NC(=N)NCc1ccccc1
Yield: 52.3 %

Procedure:
To 20 g of N1 -cyano-N3 -benzyl-guanidine and 25.4 g of dodecylamine hydrochloride, 200 ml of mesitylene was added, which was heated and refluxed for 2 hours. After reaction, by the same operation as in Example 1, 23.7 g of the captioned compound was obtained.
Reaction SMILES: [F:1][C:2]1[CH:9]=[CH:8][C:5]([CH2:6][NH2:7])=[CH:4][CH:3]=1.Cl[C:11]1[C:12]2[C:25]([CH3:26])=[CH:24][S:23][C:13]=2[N:14]=[C:15]([C:17]2[CH:22]=[N:21][CH:20]=[CH:19][N:18]=2)[N:16]=1>>[N:18]1[CH:19]=[CH:20][N:21]=[CH:22][C:17]=1[C:15]1[N:16]=[C:11]([NH:7][CH2:6][C:5]2[CH:8]=[CH:9][C:2]([F:1])=[CH:3][CH:4]=2)[C:12]2[C:25]([CH3:26])=[CH:24][S:23][C:13]=2[N:14]=1
Reactant: Cc1csc2nc(-c3cnccn3)nc(Cl)c12
Reactant: NCc1ccc(F)cc1
Product: Cc1csc2nc(-c3cnccn3)nc(NCc3ccc(F)cc3)c12

Procedure:
With the procedure of Example 1, the reaction of 4-fluorobenzylamine with 4-chloro-2-(pyrazin-2-yl)-5-methyl-thieno-[2,3-d]-pyrimidine yields 2-(pyrazin-2-yl)-4-(4-fluorobenzylamino)-5-methyl-thieno-[2,3-d]-pyrimidine.
Reaction SMILES: [Cl:1][C:2]1[CH:7]=[C:6]([C:8]#[C:9][C:10]2[N:11]=[C:12]([CH3:15])[NH:13][CH:14]=2)[CH:5]=[CH:4][N:3]=1.[F:16][C:17]1[CH:18]=[C:19](B(O)O)[CH:20]=[CH:21][CH:22]=1>>[Cl:1][C:2]1[CH:7]=[C:6]([C:8]#[C:9][C:10]2[N:11]=[C:12]([CH3:15])[N:13]([C:21]3[CH:20]=[CH:19][CH:18]=[C:17]([F:16])[CH:22]=3)[CH:14]=2)[CH:5]=[CH:4][N:3]=1
Reactant: Cc1nc(C#Cc2ccnc(Cl)c2)c[nH]1
Reactant: OB(O)c1cccc(F)c1
Product: Cc1nc(C#Cc2ccnc(Cl)c2)cn1-c1cccc(F)c1

Procedure:
The title compound, MS: m/e=312.5 (M+H+), was prepared in accordance with the general method of example 7 from 2-chloro-4-(2-methyl-1H-imidazol-4-ylethynyl)-pyridine and 3-fluorobenzene boronic acid.
Reaction SMILES: Cl[C:2]1[C:11]([CH3:12])=[CH:10][C:9]2[C:4](=[C:5]([CH3:14])[C:6]([Cl:13])=[CH:7][CH:8]=2)[N:3]=1.[Na].[NH:16]1[CH:20]=[N:19][CH:18]=[N:17]1.CN(C)C=O>O>[N:16]1([C:2]2[C:11]([CH3:12])=[CH:10][C:9]3[C:4](=[C:5]([CH3:14])[C:6]([Cl:13])=[CH:7][CH:8]=3)[N:3]=2)[CH:20]=[N:19][CH:18]=[N:17]1
Reactant: Cc1cc2ccc(Cl)c(C)c2nc1Cl
Reactant: c1nc[nH]n1
Agent: [Na]
Solvent: CN(C)C=O
Solvent: O
Product: Cc1cc2ccc(Cl)c(C)c2nc1-n1cncn1
Temperature: 100 °C
Reaction time: 25 h
Yield: 96 %

Procedure:
A mixture of 2.26 g of 2,7-dichloro-3,8-dimethyl-quinoline, 1.1 g of the sodium salt of 1,2,4-triazole and 10 ml of dimethyl formamide is stirred at 100° C. for 25 hours. The reaction mixture is poured into 100 ml of water and the precipitated product is filtered. Thus 2.48 g of the desired compound are obtained, yield 96%. Mp.: 147°-148° C.
Reaction SMILES: [ClH:1].[CH3:2][N:3]1[CH2:8][CH2:7][C:6]2([C:21]3[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=3[O:15][C:14]3[C:9]2=[CH:10][CH:11]=[CH:12][CH:13]=3)[CH2:5][CH2:4]1.[Cl:22]N1C(=O)CCC1=O>ClCCl>[ClH:22].[Cl:1][C:11]1[CH:12]=[CH:13][C:14]2[O:15][C:16]3[C:21]([C:6]4([CH2:7][CH2:8][N:3]([CH3:2])[CH2:4][CH2:5]4)[C:9]=2[CH:10]=1)=[CH:20][C:19]([Cl:22])=[CH:18][CH:17]=3
Reactant: O=C1CCC(=O)N1Cl
Reactant: CN1CCC2(CC1)c1ccccc1Oc1ccccc12
Agent: Cl
Solvent: ClCCl
Product: CN1CCC2(CC1)c1cc(Cl)ccc1Oc1ccc(Cl)cc12

Procedure:
A mixture of 1'-methylxanthene-9-spiro-4'-piperidine hydrochloride (5 g.), N-chlorosuccinimide (4.5 g.) and dichloromethane (100 ml.) is refluxed for 72 hours. The solution is washed with saturated sodium bicarbonate solution then water and dried with MgSO4. The solution is evaporated to give a gummy residue which is chromatographed on grade 3 aluminium oxide, Woelm basic. The product is eluted with 30% petroleum-ether (b.p. 60°-80° C.)/chloroform, taken up in ether and the solution treated with ethereal hydrochloric acid. The precipitate is filtered and recrystallised from ethanol-ether to give 2,7-dichloro-1'-methylxanthene-9-spiro-4'-piperidine hydrochloride, m.p. 285° C.
Reaction SMILES: Cl[C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][C:3]=1[N+:11]([O-:13])=[O:12].[N:14]1C2C(=CC=CC=2)C=C[CH:15]=1>Cl.O>[C:15]([C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][C:3]=1[N+:11]([O-:13])=[O:12])#[N:14]
Reactant: O=C(O)c1ccc(Cl)c([N+](=O)[O-])c1
Reactant: c1ccc2ncccc2c1
Agent: Cl
Solvent: O
Product: N#Cc1ccc(C(=O)O)cc1[N+](=O)[O-]
Yield: 48 %

Procedure:
4-Chloro-3-nitrobenzoic acid (5.84 g, 29 mM), cuprous cyanide (5.2 g, 58 mM), cuprous chloride (0.96 g, 9.7 mM), and quinoline (6.9 ml, 58 mM) were heated under an argon atmosphere at 180° for 3.5 hours. After cooling, the mixture was dissolved in concentrated hydrochloric acid (60 ml), diluted with water (80 ml), and extracted with ethyl acetate (3×100 ml). The combined organic layers were washed with aqueous NaH2PO4, brine, and dried over MgSO4. Crude product was purified by chromatography on silica, eluting with a mixture of dichloromethane/acetic acid (98:2), to give 4-cyano-3-nitrobenzoic acid (2.65 g, 48%). Nmr (DMSO-d6): δ 8.31 (d, 1H); 8.41 (dd, 1H); 8.68 (d, 1H).
Reaction SMILES: [F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([F:11])([F:10])[F:9])=[CH:4][C:3]=1[NH:12][C:13]([NH:15][C:16]1[CH:21]=[CH:20][C:19]([C:22]#[C:23][C:24]([NH2:26])=[O:25])=[CH:18][CH:17]=1)=[O:14].N1C2C(=CC=CC=2)C=CC=1.[H][H]>[Pd].CC([O-])=O.CC([O-])=O.[Pb+2].CCOC(C)=O>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([F:11])([F:9])[F:10])=[CH:4][C:3]=1[NH:12][C:13]([NH:15][C:16]1[CH:21]=[CH:20][C:19](/[CH:22]=[CH:23]\[C:24]([NH2:26])=[O:25])=[CH:18][CH:17]=1)=[O:14]
Reactant: [H][H]
Reactant: NC(=O)C#Cc1ccc(NC(=O)Nc2cc(C(F)(F)F)ccc2F)cc1
Agent: [Pd]
Agent: CC(=O)[O-]
Agent: [Pb+2]
Solvent: CCOC(C)=O
Solvent: c1ccc2ncccc2c1
Product: NC(=O)/C=C\c1ccc(NC(=O)Nc2cc(C(F)(F)F)ccc2F)cc1
Reaction time: 1.75 h
Yield: 85 %

Procedure:
A mixture of 3-{4-[({[2-fluoro-5-(trifluoromethyl)phenyl]amino}carbonyl)amino]phenyl}prop-2-ynamide (12.2 mg, 0.033 mmol), 0.005 mL quinoline, and 4 mg Lindlar catalyst in 1.5 mL EtOAc was reacted under a balloon of hydrogen. After 1.75 hours, an additional catalytic amount of Lindlar catalyst was added and the reaction continued for an additional 1 hour. The reaction mixture was partitioned between EtOAc and dilute aqueous HCl, the EtOAc layer washed with H2O, brine, dried with Na2SO4 and evaporated. The crude material was chromatographed eluting with hexane/acetone to give the title compound as a white solid (10.3 mg, 84%). 1H NMR (Acetone-d6) δ: 8.79 (d, J=7.9 Hz, 1H), 8.69 (br. s., 1H), 8.37 (br. s., 1H), 7.75 (d, J=8.5 Hz, 2H), 7.50 (d, J=8.8 Hz, 2H), 7.35-7.43 (m, 2H), 6.93 (br. s., 1H), 6.64 (d, J=12.9 Hz, 1H), 6.41 (br. s., 1H), 5.97 (d, J=12.9 Hz, 1H)
Reaction SMILES: I[C:2]1[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:4][CH:3]=1.C([Mg]Cl)(C)C.N#N.[F:19][C:20]([F:30])([F:29])[C:21]1[CH:28]=[CH:27][C:24]([CH:25]=[O:26])=[CH:23][CH:22]=1>C1COCC1>[OH:26][CH:25]([C:24]1[CH:23]=[CH:22][C:21]([C:20]([F:19])([F:29])[F:30])=[CH:28][CH:27]=1)[C:2]1[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:4][CH:3]=1
Reactant: O=Cc1ccc(C(F)(F)F)cc1
Reactant: COC(=O)c1ccc(I)cc1
Agent: CC(C)[Mg]Cl
Agent: N#N
Solvent: C1CCOC1
Product: COC(=O)c1ccc(C(O)c2ccc(C(F)(F)F)cc2)cc1
Temperature: 25 °C
Reaction time: 0.5 h

Procedure:
To a solution of methyl 4-iodobenzoate 17a (2.1 g, 8 mmol) in 10 mL of dry THF was added i-propyl magnesium chloride (2M in THF, 4.2 mL, 8.4 mmol) dropwise under N2 at −20° C. The solution was stirred for 30 min. The THF solution was then added slowly to a solution of 4-trifluoromethylbenzaldehyde 17b (1.1 mL, 8 mmol) in THF (20 mL) at −40° C. After 20 min, the reaction mixture was allowed to warm up slowly to room temperature. The reaction was quenched with saturated aqueous NH4Cl and extracted with EtOAc. The organic layer was concentrated and purified by flash column chromatography (silica gel, 15% EtOAc/hexanes) to give compound 17c as a white solid.
Reaction SMILES: [C:1]1([CH2:7][NH2:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.Br[CH2:10][CH2:11][CH:12]1[CH2:16][CH2:15][CH2:14][CH2:13]1>C(#N)C>[CH:12]1([CH2:11][CH2:10][NH:8][CH2:7][C:1]2[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=2)[CH2:16][CH2:15][CH2:14][CH2:13]1
Reactant: BrCCC1CCCC1
Reactant: NCc1ccccc1
Solvent: CC#N
Product: c1ccc(CNCCC2CCCC2)cc1

Procedure:
Combine 10.7 g (0.1 mol) of benzenemethanamine and 17.7 g (0.1 mol) of (2-bromoethyl)cyclopentane in 100 mL of acetonitrile. Heat the mixture to reflux and follow the progress of the reaction by thin-layer chromatography on silica gel. At the completion of the reaction remove the solvent in vacuo and add 100 mL of saturated sodium bicarbonate solution. Extract the aqueous mixture with three 100 mL portions of diethyl ether. Dry the combined extracts over anhydrous sodium sulfate. Filter the drying agent and remove the solvent in vacuo to obtain the title compound.
Reaction SMILES: [Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[CH:9]([S:17]([C:20]1[CH:25]=[CH:24][C:23]([Cl:26])=[CH:22][CH:21]=1)(=[O:19])=[O:18])[CH2:10][C:11](=[O:16])[C:12]([CH3:15])([CH3:14])[CH3:13].[Br:27]Br.C(O)(=O)C>C(Cl)(Cl)Cl>[Br:27][CH:10]([C:11](=[O:16])[C:12]([CH3:15])([CH3:14])[CH3:13])[CH:9]([C:3]1[CH:4]=[CH:5][C:6]([Cl:8])=[CH:7][C:2]=1[Cl:1])[S:17]([C:20]1[CH:25]=[CH:24][C:23]([Cl:26])=[CH:22][CH:21]=1)(=[O:19])=[O:18]
Reactant: BrBr
Reactant: CC(C)(C)C(=O)CC(c1ccc(Cl)cc1Cl)S(=O)(=O)c1ccc(Cl)cc1
Solvent: CC(=O)O
Solvent: ClC(Cl)Cl
Product: CC(C)(C)C(=O)C(Br)C(c1ccc(Cl)cc1Cl)S(=O)(=O)c1ccc(Cl)cc1

Procedure:
The bromination of 1-(2,4-dichlorophenyl)-4,4-dimethyl-1-(4-chlorophenylsulfonyl)-pentan-3-one was carried out in the same manner as that of Example 3 but using 25 g of 1-(2,4-dichlorophenyl)-1-(4-chlorophenylsulfonyl)-4,4-dimethylpentan-3-one, 8.9 g of bromine, 200 ml of acetic acid and 300 ml of chloroform, and 24.4 g of 2-bromo-1-(2,4-dichlorophenyl)-4,4-dimethyl-1-(4-chlorophenylsulfonyl)pentan-3-one was obtained. m.p. 184°-185° C.
Reaction SMILES: [Cl:1][C:2]1[CH:10]=[C:9]([C:11]([NH:13][CH:14]([C:16]2[NH:20][C:19]3[CH:21]=[CH:22][C:23]([Cl:25])=[CH:24][C:18]=3[N:17]=2)[CH3:15])=[O:12])[CH:8]=[CH:7][C:3]=1[C:4]([OH:6])=O.[CH:26]1([N:32]([CH2:34][CH:35]2[CH2:40][CH2:39][CH2:38][CH2:37][NH:36]2)[CH3:33])[CH2:31][CH2:30][CH2:29][CH2:28][CH2:27]1.C(N(C(C)C)CC)(C)C.ClCl>CS(C)=O>[Cl:1][C:2]1[CH:10]=[C:9]([CH:8]=[CH:7][C:3]=1[C:4]([N:36]1[CH2:37][CH2:38][CH2:39][CH2:40][CH:35]1[CH2:34][N:32]([CH:26]1[CH2:31][CH2:30][CH2:29][CH2:28][CH2:27]1)[CH3:33])=[O:6])[C:11]([NH:13][CH:14]([C:16]1[NH:20][C:19]2[CH:21]=[CH:22][C:23]([Cl:25])=[CH:24][C:18]=2[N:17]=1)[CH3:15])=[O:12]
Reactant: CN(CC1CCCCN1)C1CCCCC1
Reactant: CC(NC(=O)c1ccc(C(=O)O)c(Cl)c1)c1nc2cc(Cl)ccc2[nH]1
Agent: ClCl
Solvent: CS(C)=O
Solvent: CCN(C(C)C)C(C)C
Product: CC(NC(=O)c1ccc(C(=O)N2CCCCC2CN(C)C2CCCCC2)c(Cl)c1)c1nc2cc(Cl)ccc2[nH]1

Procedure:
Prepared analogously to Example 1d from rac.-2-chloro-4-{N-[1-(5-chloro-1H-benzimidazol-2-yl)ethyl]aminocarbonyl}benzoic acid, 2-(N-cyclohexyl-N-methylaminomethyl)piperidine, PFTU, and diisopropylethylamine in DMSO at ambient temperature. HPLC-MS results: retention time: 4.25 minutes; C30H37Cl2N5O2 (570.56); mass spectrum: (M−H)−=570/572/574 (chlorine isotope).
Reaction SMILES: [CH3:1][O:2][C:3]([C:5]1[CH:9]=[CH:8][N:7]([CH:10]([F:12])[F:11])[N:6]=1)=[O:4].[Cl:13]N1C(=O)CCC1=O.O>CN(C)C=O>[CH3:1][O:2][C:3]([C:5]1[C:9]([Cl:13])=[CH:8][N:7]([CH:10]([F:12])[F:11])[N:6]=1)=[O:4]
Reactant: O=C1CCC(=O)N1Cl
Reactant: COC(=O)c1ccn(C(F)F)n1
Solvent: O
Solvent: CN(C)C=O
Product: COC(=O)c1nn(C(F)F)cc1Cl
Temperature: 50 °C

Procedure:
A mixture of 1-difluoromethyl-1H-pyrazole-3-carboxylic acid methyl ester (535 mg, 3 mmol) and N-chloro-succinimide (1.22 g, 9.1 mmol) in N,N-dimethylformamide (5 ml) was heated at 50° C. overnight. The reaction mixture was cooled, poured into water (20 ml), then extracted with ethyl acetate. The organic layer was separated, washed with water, dried over sodium sulphate, finally evaporated at reduced pressure. The yellowish crude material was purified by chromatography on silica gel using a 3:1-mixture of cyclohexane and ethyl acetate as the eluent. The 4-chloro-1-difluoromethyl-1H-pyrazole-3-carboxylic acid methyl ester was obtained as a white solid (540 mg, 84%); (calculated) C6H5ClF2N2O2 [210.57]; (found) [M]+=210.
Reaction SMILES: [CH2:1]([C:3]([CH3:5])=[O:4])[CH3:2].CO.[OH-].[K+].[CH3:10][C:11]1[C:15]([CH3:17])([CH3:16])[CH:14]([CH2:18][CH:19]=O)[CH2:13][CH:12]=1.S(=O)(=O)(O)O>O>[CH3:2][C:1](=[CH:19][CH2:18][CH:14]1[CH2:13][CH:12]=[C:11]([CH3:10])[C:15]1([CH3:17])[CH3:16])[C:3](=[O:4])[CH3:5]
Reactant: CC1=CCC(CC=O)C1(C)C
Reactant: CCC(C)=O
Agent: O=S(=O)(O)O
Agent: [K+]
Agent: [OH-]
Solvent: O
Solvent: CO
Product: CC(=O)C(C)=CCC1CC=C(C)C1(C)C
Reaction time: 21 h

Procedure:
To a stirred solution of 400 g (6.1 moles) of methyl ethyl ketone, 1025 g (32 moles) of methanol, 30.5 g (0.54 mole) of potassium hydroxide and 380 g of water cooled to -5° to -10° C was added 152 g (1.0 mole) of campholenic aldehyde over 15-30 minutes. The mixture was maintained at 0° to -10° C for 24-36 hours and then at 25°-35° C for 18-24 hours. The mixture was neutralized by addition of 36.8 g of 62.5% sulfuric acid and the unreacted methyl ethyl ketone and excess methanol were removed by atmospheric distillation. The residual liquid was added to 200 ml of hexane and 200 ml of water. The aqueous layer was drawn off and the hexane layer was washed with 200 ml of brine. The hexane was removed by atmospheric distillation and the oil fractionally distilled under vacuum to give 3-methyl-5-(2,2,3-trimethylcyclopent-3-en-1-yl) pent-3-en-2-one and two other isomers in a ratio of ca. 86:6:8 by glc. Yield 140.3 g (85% theory); bp 102°-105° C (1.3 mm); nD20 1.4888; mol wt. 206 (ms); nmr, 0.8δ (3H, s), 1.0 (3H, s), 1.6 (3H, broad s), 1.8 (3H, broad s), 2.3 (3H, s, acetyl CH3), 5.3 (1H, broad multiplet, olefinic H), 6.7 (1H, complex, β-olefinic H of an α,β-unsaturated carbonyl system); ir, 3030, 1670, 1635, 790 cm-1.
Reaction SMILES: [CH2:1]([O:8][C:9]1[CH:26]=[CH:25][C:24]2[C@@H:23]3[C@H:14]([C@H:15]4[C@@:19]([CH2:21][CH2:22]3)([CH3:20])[C:18](=[O:27])[CH2:17][CH2:16]4)[C@H:13]([CH2:28][CH2:29][CH2:30][CH2:31][CH2:32]OS(C3C=CC(C)=CC=3)(=O)=O)[CH2:12][C:11]=2[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[F:44][C:45]([F:60])([C:56]([F:59])([F:58])[F:57])[CH2:46][CH2:47][CH2:48][S:49][CH2:50][C@@H:51]1[CH2:55][CH2:54][CH2:53][NH:52]1>CCCCCC.C(OCC)(=O)C>[CH2:1]([O:8][C:9]1[CH:26]=[CH:25][C:24]2[C@@H:23]3[C@H:14]([C@H:15]4[C@@:19]([CH2:21][CH2:22]3)([CH3:20])[C:18](=[O:27])[CH2:17][CH2:16]4)[C@H:13]([CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][N:52]3[CH2:53][CH2:54][CH2:55][C@H:51]3[CH2:50][S:49][CH2:48][CH2:47][CH2:46][C:45]([F:44])([F:60])[C:56]([F:57])([F:58])[F:59])[CH2:12][C:11]=2[CH:10]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
Reactant: FC(F)(F)C(F)(F)CCCSC[C@@H]1CCCN1
Reactant: Cc1ccc(S(=O)(=O)OCCCCC[C@@H]2Cc3cc(OCc4ccccc4)ccc3[C@H]3CC[C@]4(C)C(=O)CC[C@H]4[C@H]23)cc1
Solvent: CCOC(C)=O
Solvent: CCCCCC
Product: C[C@]12CC[C@@H]3c4ccc(OCc5ccccc5)cc4C[C@@H](CCCCCN4CCC[C@H]4CSCCCC(F)(F)C(F)(F)F)[C@H]3[C@@H]1CCC2=O
Yield: 72.5 %

Procedure:
Under the conditions of Example 23h, 4.58 g of 3-benzyloxy-7α-(5-tosyloxypentyl)-estra-1,3,5(10)-trien-17-one is reacted with 3.17 g of (2S)-2-(4,4,5,5,5-pentafluoropentylthiomethyl)-pyrrolidine, worked up, and the crude product is chromato-graphed on silica gel with hexane/ethyl acetate. 3.9 g of 3-benzyloxy-7α-{5-[(2S)-2-(4,4,5,5,5-pentafluoropentyl-thiomethyl)-pyrrolidin-1-yl]-pentyl}-estra-1,3,5(10)-trien-17-one is obtained as oil. [α]D22 =+32.5° (c=0.117 in chloroform).
Reaction SMILES: [C:1]([NH:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]2[C:14]([CH:21]3[CH2:23][CH2:22]3)=[C:15](Br)[C:16]([C:17]([NH2:19])=[O:18])=[C:10]2[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:24][O:25][C:26]1[CH:31]=[CH:30][C:29](B(O)O)=[CH:28][CH:27]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>C1(C)C=CC=CC=1.C(O)C>[C:1]([NH:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]2[C:14]([CH:21]3[CH2:23][CH2:22]3)=[C:15]([C:29]3[CH:30]=[CH:31][C:26]([O:25][CH3:24])=[CH:27][CH:28]=3)[C:16]([C:17]([NH2:19])=[O:18])=[C:10]2[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]
Reactant: CC(C)(C)NC(=O)N1CCn2c(c(C(N)=O)c(Br)c2C2CC2)C1
Reactant: COc1ccc(B(O)O)cc1
Agent: O=C([O-])[O-]
Agent: [Cs+]
Solvent: Cc1ccccc1
Solvent: CCO
Product: COc1ccc(-c2c(C(N)=O)c3n(c2C2CC2)CCN(C(=O)NC(C)(C)C)C3)cc1
Temperature: 100 °C
Yield: 23.6 %

Procedure:
To a mixture under nitrogen of 0.750 g (1.96 mmol) of N2-tert-butyl-7-bromo-6-cyclopropyl-3,4-dihydropyrrolo[1,2-a]pyrazine-2,8(1H)-dicarboxamide, 0.446 g (2.94 mmol) of 4-methoxyphenylboronic acid (CAS 5720-07-0) and 5.8 ml (12 mmol) of aqueous 2M caesium carbonate solution in a mixture of 15 ml of toluene and 15 ml of ethanol under argon is added 0.64 g (0.78 mmol) of tetrakis(triphenyl-phosphine)palladium (CAS 14221-01-3), and the mixture is heated at 100° C. for 17 hours. After cooling, the mixture is filtered through Celite and the filtrate concentrated under reduced pressure. The residue is then taken up in dichloromethane, the organic phase is washed with water, dried over sodium sulfate and filtered, and the solution is concentrated under reduced pressure. The residue is chromatographed on a column of 15 g of silica gel, eluting with a mixture of 10 to 100% ethyl acetate in dichloromethane, to give 0.19 g of N2-tert-butyl-6-cyclo-propyl-7-(4-methoxyphenyl)-3,4-dihydropyrrolo[1,2-a]pyrazine-2,8(1H)-dicarboxamide in the form of a white solid after crystallizing from a minimum amount of ethyl acetate, rinsing with diethyl ether and drying, and is identical to the compound obtained according to the procedure of Example 12.