Tag: M.W=300-400

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 63857-00-1, name is N-((2-Chloro-3-((phenylimino)methyl)cyclohex-2-en-1-ylidene)methyl)aniline hydrochloride, This compound has unique chemical properties. The synthetic route is as follows., Computed Properties of C20H20Cl2N2

Example 20 Synthesis of Indotricarbocyclohexen-mu-(chloro) Cyanine Iodide (Compound 20) 20 g of N-ethyl-2,3,3-trimethyl-3[H]indolium iodide, 11.4 g of compound 18, 6.3 g of sodium acetate anhydrous and 400 mL of ethanol are refluxed in a 1000 mL flask for 1 hour. The solution is cooled to room temperature and slowly added to 4 L of diethyl ether. The green precipitate is collected on a fritted glass filter and purified by flash chromatography on silica 60, 200-400 mesh, eluding with a dichloromethane/methanol 9/1 mixture.

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 63857-00-1.

Reference:
Patent; Caputo, Giuseppe; Della Ciana, Leopoldo; US2002/156288; (2002); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthetic Route of 461432-23-5,Some common heterocyclic compound, 461432-23-5, name is 4-Bromo-1-chloro-2-(4-ethoxybenzyl)benzene, molecular formula is C15H14BrClO, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

Method 4) 4-bromo-1-chloro-2-(4-ethoxybenzyl)benzene (4.9 g, 15 mmol) and 20 mL of tetrahydrofuran were added to a 50 mL three-necked flask, and the mixture was stirred and cooled to -5 to 0 C.Slowly add isopropylmagnesium chloride Grignard reagent (8 mL, 2 mol/L).The system was stirred at 0 C for 2 h.In another 100mL three-neck bottle,Add (2R,3R,4S,5R,6R)-2-(acetoxymethyl)-6-bromotetrahydro-2H-pyran-3,4,5-triacetyl ester (IIa, 4.1 g, 10 mmol) , tetramethylethylenediamine (10wt%),Cobalt dichloride (10 wt%) and 20 mL of 2-methyltetrahydrofuran,The system was cooled to 0 C.Slowly add the Grignard reagent in the previous 50mL bottle and add it in about 30min.After the completion of the system, the system was warmed to 25 to 30 C, and the mixture was stirred for 2 hours. The system was quenched with 1N aqueous hydrochloric acid and the organic phase was extracted with ethyl acetate.concentrate,Column chromatography (PE/EA=3/1),The target product (4.5 g, yield 84%) was obtained.

The synthetic route of 461432-23-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Shanghai Fangnan Biological Technology Co., Ltd.; Zhang Nian; (6 pag.)CN104059041; (2018); B;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 461432-23-5, name is 4-Bromo-1-chloro-2-(4-ethoxybenzyl)benzene, A new synthetic method of this compound is introduced below., name: 4-Bromo-1-chloro-2-(4-ethoxybenzyl)benzene

To a stirred solution of 4-bromo-l-chloro-2-(4-ethoxybenzyl)benzene (747 g, 2.31 mol) in dichloromethane was added boron tribromide (1.15 kg, 4.62 mol) slowly at -78 C. The reaction mixture was allowed to rise to room temperature. When the reaction was complete as measure by TLC, the reaction was quenched with water. The mixture was extracted with dichloromethane. The organic layer was washed with aqueous solution of saturated sodium bicarbonate, water, brine, dried over Na2S04, and concentrated. The residue was recrystallized in petroleum ether to give the title compound as a white solid (460 g, yield 68%). 1H NMR (CDC13, 400MHz): delta 7.23-7.29 (m, 3H), 7.08 (d, J=8.8 Hz, 2H), 6.79 (d, J=8.8 Hz, 2H), 5.01 (s, 1H), 4.00 (s, 2H).

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; THERACOS, INC.; CAI, Mengzhuang; LIU, Qian; XU, Ge; LV, Binhua; SEED, Brian; ROBERGE, Jacques; WO2011/153712; (2011); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 461432-23-5, name is 4-Bromo-1-chloro-2-(4-ethoxybenzyl)benzene, A new synthetic method of this compound is introduced below., Recommanded Product: 461432-23-5

Under argon protection conditions,300 mL of dried tetrahydrofuran (THF) was added to a 1 L three-necked flask,5-bromo-2-chloro-4-ethyldiphenylmethane (65.5 g, 200 mmol)The temperature of the reaction system was controlled at -78 C with an acetone /(N-BuLi) 80 mL (2.5 mol / L, 200 mmol, 1 eq) was slowly added dropwise. The temperature of the reaction system was controlled at -78 C or lower, and the reaction was continued at the end of the dropwise addition. hour;Then, 19.1 g (100 mmol) of cuprous iodide was slowly added to the reaction system, and the temperature of the reaction system was controlledIn the -40 ~ -30 reaction 1 hour, then slowly to the reaction system drip2,3,4,6-tetra-O-acetyl-alpha-D-pyran bromoglucoseTHF solution (41.5 g, 100 mmol, THF 100 mL, 0.5 eq) was added and the reaction temperature was controlled at -40 to -30 C during the addition and maintained at that temperature for 1 hour,After the addition was complete, the temperature of the reaction system was gradually returned to room temperature for 3 hours.After the reaction was quenched under ice cooling conditions with a saturated NaHCO3 solution to quench the reaction, extracted with ethyl acetate, and the combined organic phases, the organic phase with saturated brine, dried over anhydrous magnesium sulfate and concentrated under reduced pressure to give a brown crude product was 59.8 g, 300 mL of anhydrous ethanol to give 53.1 g of a white solid (Compound 1:2-chloro-5- (2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl-1-yl)4′-ethoxydiphenylmethane),HPLC detection purity of 98.5% or more, the yield of 93%.

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; Shenzhen Hanyu Pharmaceutical Co., Ltd.; Chen Xinliang; Yao Zhijun; Li Guotao; Liu Jian; Ma Yaping; Yuan Jiancheng; (13 pag.)CN104496952; (2017); B;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics