Tag: M.W:100-200

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 1970-40-7, is researched, SMILESS is OC1=C(Cl)C(Cl)=NC=C1Cl, Molecular C5H2Cl3NOJournal, Crop Science called Herbicide effects on soybean [Glycine max] seed lipids, Author is Penner, Donald; Meggitt, William F., the main research direction is seed lipid herbicide; soybean lipid herbicide; lipid soybean herbicide; herbicide soybean lipid; fatty acid seed herbicide; trifluralin soybean lipid; nitralin soybean lipid; vernolate soybean lipid.Quality Control of 2,3,5-Trichloropyridin-4-ol.

Two soybean cultivars, G. max, which differed in fatty acid composition and yield showed no significant differences in their response to 13 herbicides. Trifluralin, nitralin, and vernolate induced changes in fatty acid composition and yield, but no changes in the percentage oil content in the seed. Increases in the percent stearic acid content were correlated with decreases in the percent linoleic acid content. With all treatments, there was no general correlation of changes in fatty acid composition with yield or injury.

Here is a brief introduction to this compound(1970-40-7)Quality Control of 2,3,5-Trichloropyridin-4-ol, if you want to know about other compounds related to this compound(1970-40-7), you can read my other articles.

Reference:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1532-84-9,Isoquinolin-1-amine,as a common compound, the synthetic route is as follows.

(a) 1,2,3,4-tetrahydroisoquinoline-6-amine monohydrochloride A solution of isoquinolin-amine ?Manske, R. H. F., et. al, J. Am. Chem. Soc., 72, 4997[(1950)] (4.40 g, 30.5 mmol) and platinum oxide (300 mg) in a solution of acetic acid (85 ml) and 2.5M hydrochloric acid (30 ml) was placed on a Paar Hydrogenator Apparatus and was pressurized with 45 psi of hydrogen for 16 h. The solvent was removed in vacuo and the resulting salt was partitioned between aqueous potassium carbonate and 20% isopropanol in methylene chloride. The dried (magnesium sulfate) organic phase was concentrated and the resulting oil was chromatographed on silica gel using 2% methanol in chloroform as eluent to give 3.08 g (93%) of the product as an oily solid. This product (3.08 g, 20.8 mmol) was taken up in 200 ml of ethanol and 1 equivalent of a 0.1000M hydrochloric acid solution was added. The solvent was removed to yield the monohydrochloride as a solid, MS 149 (M+H).

1532-84-9, The synthetic route of 1532-84-9 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; Astra Aktiebolag; US5807886; (1998); A;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

1532-84-9, Isoquinolin-1-amine is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Preparation 7 2-(2-Methylphenyl)imidazo[2,1-a]isoquinoline A mixture of 3.0 g of 1-aminoisoquinoline, 6.7 g of 2′-methyl-2-bromoacetophenone and 17.5 g of sodium bicarbonate in 50 ml of ethanol was refluxed for 2 hours. After being cooled, the reaction mixture was poured into water and extracted with ethyl acetate. The extract was washed with water and saturated saline, and dried over anhydrous magnesium sulfate. The drying agent was removed by filtration, and the solvent was removed under reduced pressure. The residue was purified by column chromatography on silica gel and recrystallized from dichloromethane/petroleum ether to give 4.4 g of the title compound as pale brown prisms. m.p.: 93.0 C.; IR(KBr): 3070-3020, 2960, 1640, 1604, 1538, 1515, 1480, 1458, 1382, 1316, 1208, 1193, 1144, 1120, 1078, 1045, 938, 870, 788, 770, 730, 700; NMR(CDCL): 8.90-8.60(1H,m), 8.15-7.83(1H,m), 7.79(1H,d,J=7.0 Hz), 7.70-7.10(7H,m), 6.90(1H,d,J=7.0 Hz), 2.54(3H,s)

1532-84-9, As the paragraph descriping shows that 1532-84-9 is playing an increasingly important role.

Reference：
Patent; Shinnippon Pharmaceutical, Inc.; US6020342; (2000); A;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.51463-17-3,6-Chloroisoquinolin-3(2H)-one,as a common compound, the synthetic route is as follows.,51463-17-3

To a mixture of 6-chloroisoquinolin-3-ol (3.3 g, 18.4 mmol) and pyridine (7.43 ml, 91.9 mmol) in dichloromethane at 0C was added triflic anhydride (1.0 M in dichloromethane, 18.4 ml, 18.4 mmol) slowly via syringe. The reaction was allowed to warm to room temperature and stirred for 3 h then most of the solvent was removed by rotary evaporation. The residue was diluted ether and washed water (3x), 1 N HC1, and brine. The organics were dried over MgS04 and concentrated to afford 2.1 g (37%) of trifluoro-methanesulfonic acid 6-chloro-isoquinolin-3-yl ester as a green crystalline solid.

As the paragraph descriping shows that 51463-17-3 is playing an increasingly important role.

Reference：
Patent; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; ALAM, Muzaffar; HAWLEY, Ronald Charles; LYNCH, Stephen M.; NARAYANAN, Arjun; WO2014/86701; (2014); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.129075-49-6,5-Methoxy-3,4-dihydroisoquinolin-1(2H)-one,as a common compound, the synthetic route is as follows.

General procedure: To a suspension of NaH (0.11g, 4.5mmol) in DMF (10 mL), a solution in DMF (5 mL) of the appropriate 3,4-dihydroisoquinolin-1-one (1.8 mmol), was added in a dropwise manner, at 0 C under a stream of N2. After 15min, 1-bromo-3-chloropropane was added in a dropwise manner and the mixture was allowed to warm to room temperature and was kept under stirring for 30 min. After cooling to 0 C H2O was added and the solvent was removed under reduced pressure. The residue was taken up with water and extracted with AcOEt (3×10 mL). The organic layers were collected, dried over Na2SO4 and evaporated under reduced pressure. The crude residue was purified by column chromatography with CH2Cl2/AcOEt (1:1) as eluent., 129075-49-6

129075-49-6 5-Methoxy-3,4-dihydroisoquinolin-1(2H)-one 7385098, aisoquinoline compound, is more and more widely used in various fields.

Reference：
Article; Abate, Carmen; Selivanova, Svetlana V.; Mueller, Adrienne; Kraemer, Stefanie D.; Schibli, Roger; Marottoli, Roberta; Perrone, Roberto; Berardi, Francesco; Niso, Mauro; Ametamey, Simon M.; European Journal of Medicinal Chemistry; vol. 69; (2013); p. 920 – 930;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.129075-49-6,5-Methoxy-3,4-dihydroisoquinolin-1(2H)-one,as a common compound, the synthetic route is as follows.

General procedure: To a suspension of NaH (0.11g, 4.5mmol) in DMF (10 mL), a solution in DMF (5 mL) of the appropriate 3,4-dihydroisoquinolin-1-one (1.8 mmol), was added in a dropwise manner, at 0 C under a stream of N2. After 15min, 1-bromo-3-chloropropane was added in a dropwise manner and the mixture was allowed to warm to room temperature and was kept under stirring for 30 min. After cooling to 0 C H2O was added and the solvent was removed under reduced pressure. The residue was taken up with water and extracted with AcOEt (3×10 mL). The organic layers were collected, dried over Na2SO4 and evaporated under reduced pressure. The crude residue was purified by column chromatography with CH2Cl2/AcOEt (1:1) as eluent., 129075-49-6

129075-49-6 5-Methoxy-3,4-dihydroisoquinolin-1(2H)-one 7385098, aisoquinoline compound, is more and more widely used in various fields.

Reference：
Article; Abate, Carmen; Selivanova, Svetlana V.; Mueller, Adrienne; Kraemer, Stefanie D.; Schibli, Roger; Marottoli, Roberta; Perrone, Roberto; Berardi, Francesco; Niso, Mauro; Ametamey, Simon M.; European Journal of Medicinal Chemistry; vol. 69; (2013); p. 920 – 930;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

1532-84-9, Isoquinolin-1-amine is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

EXAMPLE 6 A heterogenous mixture containing 14.4 g of 1-isoquinolinamine (0.1 m) and 14.12 g of dihydro-3-[(dimethylamino)methylene]-2(3H)-furanone was heated to 200 C. for 4 hours to yield a homogenous yellow orange solution which solidified upon cooling to ambient temperature. The solidified reaction mixture was titurated with methanol and ethyl acetate to yield 3-(2-hydroxyethyl)-4H-pyrimido[2,1-a]isoquinolin-4-one as a tan solid (18.0 g; 75% yield) of the formula STR26 having a melting point of 185.2-187.0 C. and the following elemental analysis: C14 H12 N2 O2 (MW=240.25): Calculated: C, 69.98; H, 5.04; N, 11.66. Found: C, 69.87; H, 5.00; N, 11.52., 1532-84-9

Big data shows that 1532-84-9 is playing an increasingly important role.

Reference：
Patent; G. D. Searle & Co.; US4661592; (1987); A;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1532-84-9,Isoquinolin-1-amine,as a common compound, the synthetic route is as follows.

EXAMPLE 6 2-[(1,1′-Biphenyl)-4-yl]-imidazo[2,1-a]isoquinoline A solution of 4.32 g. (0.03 mole) of 1-amino-isoquinoline and 8.25 g. (0.03 mole) of [(1,1′-biphenyl)-4-yl]-bromomethyl-ketone in 100 ml. of chloroform was heated on a boiling water bath for about 10 minutes until a precipitate separated. The solvent was distilled off at atmospheric pressure and the residue was heated under vacuum for 30 minutes at 100 C. It was subsequently taken up with 50 ml of water and the resulting solution was made alkaline by means of 70 ml. of aqueous 10% sodium hydroxide. After extracting with 500 ml. of methylene chloride and evaporating the solvent, a residue was obtained which was re-crystallized from ethylene glycol monomethylether. Yield 3.0 g. M.p. 221-22 C., 1532-84-9

As the paragraph descriping shows that 1532-84-9 is playing an increasingly important role.

Reference：
Patent; Gruppo Lepetit S.p.A.; US4275066; (1981); A;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1532-84-9,Isoquinolin-1-amine,as a common compound, the synthetic route is as follows.

To a stirred solution of 1-aminoisoquinoline (2.5 g, 17.3 MMOL) in methylene chloride (50 mi) was added 3-bromopropyl isocyanate (3.13 g, 19 MMOL) dissolved in methylene chloride (15 ML). The mixture was allowed to stir at room temperature overnight. The mixture was partitioned between methylene chloride (20 ml) and aqueous saturated sodium bicarbonate (20 ml). The organic layer was separated and washed with brine, dried over sodium sulfate and concentrated to give 4.97 G of a brown solid (92%). This was used directly in the next step., 1532-84-9

Big data shows that 1532-84-9 is playing an increasingly important role.

Reference：
Patent; GENZYME CORPORATION; WO2004/63181; (2004); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

1532-84-9, Isoquinolin-1-amine is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Preparation 7 2-(2-Methylphenyl)imidazo[2,1-a]isoquinoline A mixture of 3.0 g of 1-aminoisoquinoline, 6.7 g of 2′-methyl-2-bromoacetophenone and 17.5 g of sodium bicarbonate in 50 ml of ethanol was refluxed for 2 hours. After being cooled, the reaction mixture was poured into water and extracted with ethyl acetate. The extract was washed with water and saturated saline, and dried over anhydrous magnesium sulfate. The drying agent was removed by filtration, and the solvent was removed under reduced pressure. The residue was purified by column chromatography on silica gel and recrystallized from dichloromethane/petroleum ether to give 4.4 g of the title compound as pale brown prisms. m.p.: 93.0 C.; IR(KBr): 3070-3020, 2960, 1640, 1604, 1538, 1515, 1480, 1458, 1382, 1316, 1208, 1193, 1144, 1120, 1078, 1045, 938, 870, 788, 770, 730, 700; NMR(CDCL): 8.90-8.60(1H,m), 8.15-7.83(1H,m), 7.79(1H,d,J=7.0 Hz), 7.70-7.10(7H,m), 6.90(1H,d,J=7.0 Hz), 2.54(3H,s)

1532-84-9, As the paragraph descriping shows that 1532-84-9 is playing an increasingly important role.

Reference：
Patent; Shinnippon Pharmaceutical, Inc.; US6020342; (2000); A;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem