Category: 628-21-7

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. 628-21-7, name is 1,4-Diiodobutane, This compound has unique chemical properties. The synthetic route is as follows., Recommanded Product: 1,4-Diiodobutane

Stage 1 (0250) An oven-dried 3 L 4-neck flask fitted with an internal thermometer, N2 bubbler, overhead stirrer and oven-dried pressure-equalising dropping funnel was charged with 1,4-dibromo-2,5-dimethylbenzene (70 g, 265 mmol) and dry THF (700 mL). The solution was cooled with stirring to <-70 C. to produce a white slurry. s-Butyllithium (370 mL, 1.4 M, 518 mmol) was charged to the dropping funnel and added dropwise over the space of 2 h ensuring the reaction temperature did not exceed -70 C. The slurry was stirred for 2 h after which GCMS confirmed the lithiation was complete. The dropping funnel was charged with a solution of 1,4-diiodobutane (15.7 mL, 119 mmol) in dry THF (160 mL) which was then added dropwise over 0.75 h. The resulting pale yellow slurry was allowed to warm to room temperature and stirred for 12 h. The reaction was quenched by addition of water. The mixture was transferred to a separating funnel and the layers were separated. The aqueous layer was extracted with diethyl ether and the combined organics were washed with water, dried with MgSO4, filtered and concentrated to yield an off-white solid. The product was triturated with 300 mL methanol for 2 h and recrystallised from toluene/IPA to yield a white powder that was dried in the oven (31.86 g, 63%). GCMS indicated a purity of 96% and the material was taken to the next stage without further purification 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 628-21-7.

In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 628-21-7, name is 1,4-Diiodobutane belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. name: 1,4-Diiodobutane

1) Weigh 7.1g of pyrrolidine and 14g of potassium carbonate dissolved in acetone 1000mL, added to the three bottles, the temperature adjusted to 15 C after the slow drop1,4-diiodobutane, 13.4 mL,The whole drop reaction temperature was maintained at 15 C to 20 C,After the completion of heating to 35 C , continue to respond 24h,After the reaction is completed, the reaction solution is directly filtered,The organic solvent was distilled under reduced pressure to give 24.5 g1- (4-iodobutane) pyrrole,The yield (in terms of pyrrolidine) was 97%.

The synthetic route of 628-21-7 has been constantly updated, and we look forward to future research findings.

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. 628-21-7, name is 1,4-Diiodobutane, A new synthetic method of this compound is introduced below., COA of Formula: C4H8I2

A12 (50.0 mg, 244.82 mumol), 1,4-diiodobutane (48 muL, 367.23 mumol), potassium carbonate (50.8 mg, 367.23 mumol), and anhydrous N, N-dimethylformamide (3 mL) It was added to a 10 mL eggplan60t-shaped flask and stirred at 60 C for 4 hours. After the reaction was detected by TLC, it was filtered and the filtrate was concentrated. After recrystallization (petroleum ether / ethyl acetate, volume ratio of 1: 1), 60.0 mg of white solid was obtained with a yield of 95%. mp: 100-102 C;

The synthetic route of 628-21-7 has been constantly updated, and we look forward to future research findings.

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. 628-21-7, name is 1,4-Diiodobutane, A new synthetic method of this compound is introduced below., category: iodides-buliding-blocks

General procedure: A suspension of alkenyl- or aryl-dithiol(1.0 mmol), triethylamine (2.0 mmol), LR (0.44g, 1.0 mmol) or FcLR (0.56 g, 1.0 mmol) and dihaloalkane(1.0 mmol) in dry THF (60 mL) was stirred under N2 gas atmosphere at ambient temperature for 24 h leadingto a reddish yellow or pale-yellow suspension. Upon filtering to remove insoluble solid the filtrate was driedunder reduced pressure. The residue was dissolved in dichloromethane (ca. 2 mL) and was loaded onto a silicagel column (dichloromethane as eluent) to give the macrocycles. Another unexpected nine-membered ring 4was also obtained in respective 25% and 30% yields in the cases of 5 and 9. Two diastereomers wereseparated completely in the cases of 10 and 12.

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:
Article; Hua, Guoxiong; Cordes, David B.; Slawin, Alexandra M. Z.; Woollins, J. Derek; Synlett; vol. 29; 11; (2018); p. 1496 – 1501;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 628-21-7, name is 1,4-Diiodobutane belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Formula: C4H8I2

Example 1: Synthesis of dimethyl 3,3′-(3,3′-(butane-l,4-diyl)bis(5-methyl-2,4-dioxo- 3,4-dihydropyrimidine-3,l(2H)-diyl))dipropanoate or butyl- linked bis-(thymine propanoate).[70] The title compound was synthesized according to the reaction scheme depicted in Figure 2. Thymine propanoate (1.4 g, 6.8 mmol) was dissolved in anhydrous DMF (10 mL) at 70 C. K2CO3 (1.1 g, 8.2 mmol) was added, and the mixture was stirred for 5 min before the addition of diiodobutane (0.84 g, 2.7 mmol). After 48 hours, the insoluble white material was collected by filtration. The solids were suspended in distilled H20 to dissolve K2C03, and precipitate the products. The insoluble material was collected by filtration, washed with distilled H20, and recrystallised from hot EtOH. Mp. 189 C; Yield: 0.72 g (89 %). MS (ESI): calculated for [C22H23N408]+: m/z 478.2; Found: m/z 479.1 (M+l), 501.1 (M+Na). 1H- NMR (400 MHz, CDC13): deltaEta 7.14 (d, J = 1.2 Hz 2H, CH), 3.96 (t, J = 6.4 Hz, 8H, 2 x N3- CH2, 2 x NI-CH2), 2.77 (t, J = 6.4 Hz, 4H, N1-C-CH2), 1.90 (d, J = 1.2 Hz, 6H, C-CH3), 1.68 (m, J = 3.2 Hz, 4H, (CH2)2). 13C-NMR (200 MHz, CDC13): 5C 151.47, 139.52, 109.66, 61.17 (C-CH3), 52.16 (O-CH3), 45.96 (CH2), 41.22 (CH2), 33.11 (CH2), 25.42 ((CH2)2), 13.15 (C- CH3). IR (KBr, cm”1): 1730 (v COOR

The synthetic route of 628-21-7 has been constantly updated, and we look forward to future research findings.

Application of 628-21-7,Some common heterocyclic compound, 628-21-7, name is 1,4-Diiodobutane, molecular formula is C4H8I2, 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.

With reference to the above reaction formula 12, the ICH2CH2CH2CH2I (309 mg, 0 . 18mmol) containing as added to the starting material of the amine compound (amine compound, 40 mg, 0 . 15mmol), K2CO3(62 mg, 0 . 45mmol) of DMF (10 ml) solution, in 60 C mix 48 hours for reaction. Thus-prepared reaction solution, with the ice water (10 ml) after mixing, using CH2Cl2(2×20 ml) to carry out extraction. Collecting the organic layer, water (2x 10 ml) after washing, the use of non-aqueous sulfuric acid drying, to chromatographic method for the brown residue (CH2Cl2As eluant) is purified, thereby obtaining the chemical formula 27 compound (yield: 17 mg, 35%).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1,4-Diiodobutane, its application will become more common.

Reference:
Patent; Shuntian Township University-Industry Association; Korea Chemical Research Institute; Song, Honyeon; Jang, Ungsig; Nam, Gungu; Li, Byeongui; Gil, Yeonsig; Li, Qiin; Sadu, Bunjabtab Seopaila; Jo, Huiyeong; (35 pag.)CN106176709; (2016); A;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Related Products of 628-21-7,Some common heterocyclic compound, 628-21-7, name is 1,4-Diiodobutane, molecular formula is C4H8I2, 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.

In a 50 mL flask compound 6 (100 mg, 0.43 mmol) and dry K2CO3 (80 mg, 0.50 mmol) were added to anhydrous DMF (3 mL). When the product was completelydissolved, an excess of 1,4-diiodobutane (0.5 mL) was added at room temperature. To the crude product distilled water (10 mL) was added and the solution was extracted three times with diethyl ether (30 mL). Then, the organic phase was washed three times with saturated aqueous NaCl solution(10 mL) and finally dried over Na2SO4. The product was purified by column chromatography(30%-60% CHCl3 in hexane), to give compound 7 was obtained as a white solid (237 mg, 0.39 mmol,91%).

The synthetic route of 628-21-7 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Altieri, Alessandro; Alvino, Antonello; Ohnmacht, Stephan; Ortaggi, Giancarlo; Neidle, Stephen; Nocioni, Daniele; Franceschin, Marco; Bianco, Armandodoriano; Molecules; vol. 18; 11; (2013); p. 13446 – 13470;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Some common heterocyclic compound, 628-21-7, name is 1,4-Diiodobutane, molecular formula is C4H8I2, 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. Application In Synthesis of 1,4-Diiodobutane

To a solution of 5-bromo-7-chloro-2-[(4-methoxyphenyl)methyl]isoindolin-1-one (1, 0.4 g, 1.09 mmol) in tetrahydrofuran (25 mL) at room temperature was added sodium hydride (131 mg, 5.45 mmol). The reaction was stirred for 30 min and then 1,4-diiodobutane (2, 1691 mg, 5.45 mmol) was added to the reaction mixture. The reaction was stirred at room temperature for an additional 5 h. After completion, the reaction mass was quenched with a cold saturated solution of ammonium chloride at 0 C. The residue was dissolved in ethyl acetate (100 mL) and the organic layer was washed with water (2¡Á20 mL) then with brine (10 mL). The organics were separated and dried using magnesium sulfate before concentration to dryness. The crude was then purified by flash column chromatography using 10% ethyl acetate in hexane as the eluant. The desired fractions were concentrated to dryness under vacuum to afford 5?-bromo-7?-chloro-2?-[(4-methoxyphenyl)methyl]spiro[cyclopentane-1,3?-isoindoline]-1?-one as a yellow solid. Yield: 0.21 g, 45%; MS (ESI) m/z 422.2[M+1]+; 1H NMR (400 MHz, CDCl3) delta 7.54 (s, 1H), 7.40 (s, 1H), 7.26 (d, J=8.10 Hz, 2H), 6.83 (d, J=8.10 Hz, 2H), 4.64 (s, 2H), 3.95 (s, 3H), 2.17-1.72 (m, 8H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 628-21-7, its application will become more common.

Reference:
Patent; EFFECTOR THERAPEUTICS, INC.; Sprengeler, Paul A.; Reich, Siegfried H.; Ernst, Justin T.; Webber, Stephen E.; (55 pag.)US2017/121339; (2017); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Related Products of 628-21-7, 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. 628-21-7, name is 1,4-Diiodobutane, This compound has unique chemical properties. The synthetic route is as follows.

To a mixture of xanthene (1, 100 mg, 0.54 mmol), previously solubilised in dry THF (5 mL) a solution of BuLi (3 mmol) was added under Ar at room temperature. The simultaneous carbanion formation caused an immediate colour change of the solution from colourless to red. The solution was transferred dropwise to a flask containing 1,4-diidodoproane (0.15 mL, 2 mmol) in dry THF (5 mL) at -50 C. The reaction was allowed to warm to room temperature after 2 h and the reaction stirred overnight at room temperature. After approx. 14 h (TLC 40% hexane-CHCl3 7:3), the solvent was evaporated in vacuo. The crude product was dissolvedin DCM (75 mL), washed three times with water (30 mL), dried (Na2SO4) and taken to dryness in vacuo. The crude product obtained was purified by flash column chromatography (0%-40% CHCl3 in hexane). A white powder of 9 was obtained (37.7 mg, 0.25 mmol, 42%).

The chemical industry reduces the impact on the environment during synthesis 1,4-Diiodobutane. I believe this compound will play a more active role in future production and life.

Reference:
Article; Altieri, Alessandro; Alvino, Antonello; Ohnmacht, Stephan; Ortaggi, Giancarlo; Neidle, Stephen; Nocioni, Daniele; Franceschin, Marco; Bianco, Armandodoriano; Molecules; vol. 18; 11; (2013); p. 13446 – 13470;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

628-21-7, name is 1,4-Diiodobutane, belongs to iodides-buliding-blocks compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. HPLC of Formula: C4H8I2

Example 3 (n=4); (a) 1, 1′-[(Butane-1,4-diyl)dioxy]bis[(11S,11aS)-10-(tert- butyloxycarbonyl)-8-methoxy-ll- (tetrahydro-pyran-2-yloxy)- 1, 2,3, 10, 11, 11a-hexahydro-5H-pyrrolo[2,-c][1,4]benzodiazepine-5-one](8b); 1,4-Diiodobutane (69.1 mg, was added to the mixture of monomer 7 (0.2 g, 0.44 mmol, 1.0 equiv) and potassium carbonate (0.98 mmol, 2.2 equiv) in dry DMF (30 mL), and the resulting mixture was heated to 90C under a nitrogen atmosphere for 5 h. Removal of excess solvent under reduced pressure afforded a crude solid, which was subjected to flash column chromatography (SiO2, 50% EtOAc- hexane) to afford the dimerized compound 8b (134 mg, 0.14 mmol, 63% yield, mixture of diastereomers from THP protecting group as a solid: [a] 20D = +36 (c = 0. 19, CHCl3) ; 1H NMR (CDC, 400 MHz): 5 1.35 (s, 36H, Boc), 1.45-1. 67 (m, 16H, THP), 1.68-1. 86 (m, 8H, THP), 1.90-2. 21 (m, 24H, 1-H, 2-H, 13-H), 3.44-3. 78 (m, 16H, 3-H, lla-H, THP), 3.84-4. 02 (m, 16H, 7-OMe, THP), 4. 04-4. 25 (m, 8H, 12- H), 5.02-5. 10 (m, 2H, THP), 5.11-5. 20 (m, 2H, THP), 5.69-5. 77 (d, 2H, 11-H), 5.79-5. 89 (d, 2H, 11-H), 6.51 (s, 2H, 9-H), 6.88 (s, 2H, 9-H), 7.19 (s, 2H, 6-H), 7.28 (s, 2H, 6-H) ; 13C NMR (CDCl3, 400 MHz): No. 19.8, 20.5, 23.1, 23.2, 25.3, 25.9, 28.1, 28. 2,28. 9, 29.1, 30.9, 31.2, 46.2, 55.9, 56.2, 60.1, 63.3, 63.6, 68.6, 80.9, 88.2, 91.2, 96.2, 100.2, 111.1, 111.4, 113.4, 114.1, 118.5, 126.4, 129.8, 143.1, 147.9, 148.2, 151. 5, 151. 8,155. 8,167. 4,167. 6; IR (neat): 2945,1704, 1644, 1604,1513, 1449,1392, 1327,1217, 1163, 1022cm~1 ; MS (FAB) m/z (relative intensity) 973 ([M + Na] +, 11), 951 (M +, 100), 749 (36).

The synthetic route of 628-21-7 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; SPIROGEN LIMITED; WO2005/85259; (2005); A2;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com