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inquiryAnsciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
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inquiryHangzhou Keying Chem Co., Ltd. Is a comprehensive enterprise, dedicated to the development, production and marketing of chemicals. As a technology innovative and service professional enterprise, Our company mainly engages in global pharmaceutical, ch
CFTC?PharmaChem?is?a?service?based?company?in?China,?a?pharmachem?division?of?Changzhou?Foreign?Trade?Corp.,supplying?raw?materials,?intermediates,?APIs?and?fine?chemicals?for?the?pharmaceutical?and?specialty?chemical?industries?worldwide. Applicatio
YUYONGMEI was established in Aug,1999, located in the industrial park of Nanjing University of Technology, It is a private enterprises in Jiangsu Province with 1200 square meters’ R&D center. Our R&D center has a well-equipped synthetic laboratory a
high purity Application:Drug intermediates Materials intermediates and active molecules
Conditions | Yield |
---|---|
at 75℃; for 6.5h; Inert atmosphere; | 95% |
Conditions | Yield |
---|---|
at 90℃; for 7h; Inert atmosphere; | 94% |
Conditions | Yield |
---|---|
at 60℃; for 6h; Inert atmosphere; | 92% |
Conditions | Yield |
---|---|
With copper(l) iodide In neat (no solvent) CuI, Zn were placed in reactor, evacuated for 10 min, filled with Ar, Al-compound and ligand were added, heated to 42°C for 12 h, cooled to room temp.; vac. distilled; | 90% |
Conditions | Yield |
---|---|
In dibutyl ether soln. MeMgI in n-Bu2O was slowly added to ZnCl2 under vigorous stirring,suspn. was heated at 60°C for 60 h; ZnMe2 was collected by distillation in temp. range 130-160°C; | 75% |
[Zn(Pd(N(FC6H3P(C3H7)2)2))2]
methyl iodide
Pd(CH3)(N(C6H3(F)P(CH(CH3)2)2)2)
B
dimethyl zinc(II)
Conditions | Yield |
---|---|
In benzene-d6 Irradiation (UV/VIS); at room temp. up to 5 d; NMR; | A n/a B 60% |
Conditions | Yield |
---|---|
In tetrahydrofuran under Ar; THF soln. of MeLi and germylzinc stirred at room temp. for 1.5h; | A 0% B 50% C 50% |
In diethyl ether germylzinc compd. reacted with 1 mol Li compd.; symmetrical compds. yielded in quantitative reaction in ratio of 1:1 (detmd. by (1)H NMR); | A 0% B n/a C n/a |
Conditions | Yield |
---|---|
With diethyl ether; zinc(II) chloride |
diethylzinc
methylmercury(II) iodide
A
dimethyl zinc(II)
B
diethylmercury
Conditions | Yield |
---|---|
With zinc at 120℃; |
Conditions | Yield |
---|---|
Durch thermische Zersetzung unter vermindertem Druck und Einw. des entstandenen Methyls auf metallisches Zink; |
methylzinc iodide
dimethyl zinc(II)
Conditions | Yield |
---|---|
at 25℃; |
Conditions | Yield |
---|---|
With sodium amalgam; acetic acid ester; zinc man verwendet einen kupfernen Kessel und destilliert aus dem Oelbad bei moeglichst niedriger Temperatur; | |
With zinc at 150 - 160℃; | |
With diethyl ether; zinc at 100℃; Destillation des Reaktionsproduktes; |
dimethyl zinc(II)
Conditions | Yield |
---|---|
With zinc at 100℃; Destillation des Reaktionsproduktes; |
Conditions | Yield |
---|---|
at 120℃; |
diethylzinc
methylmercury(II) iodide
A
dimethyl zinc(II)
B
diethylmercury
Conditions | Yield |
---|---|
With zinc Destillation des entstehenden intermediaeren Methylzinkjodid; |
Conditions | Yield |
---|---|
In dodecane excess of Me3Al in dodecane adding to suspn. of anhyd. Zn acetate in dodecane at room temp.; mixt. distg. through a 40 cm vigreux column and product collecting in toluene; identified by b. p.; |
Conditions | Yield |
---|---|
With copper; methyl iodide In neat (no solvent) sealed tube (vac.), Zn/Cu powder contg. 91 % Zn, 373 K (20 h); cooling to 77 K, opening, fractional distn. (vac.); | |
With hydrogen; copper(II) oxide; methyl iodide In dichloromethane heating Zn and CuO under H2 (color change from black to gray), purging with N2, cooling to room temp., slow addn. of CH3I via the dropping funnel, heating at 65-70°C for abbout 18 h, allowing to come to room temp., cooling to -78°C; whole operation in a hood; Liebig cooler with flasks (CH2Cl2), flasks are cooled (dry ice/acetone bath), distn. at atmospheric pressure, heating of flask (oil bath, 200°C); | 70-75 |
Conditions | Yield |
---|---|
In tetrahydrofuran; diethyl ether (Ar); stirring (0°C, 30 min.); | |
In tetrahydrofuran-d8 under Ar; to mixt. of ZnCl2 and MeLi addded THF-D8 in NMR tube at low temp., allowed to warm to room temp., stirred for 5 min, not isolated; | |
In diethyl ether (inert atmosphere); not isolated; | |
In tetrahydrofuran; diethyl ether at 0℃; for 0.5h; Schlenk technique; |
dimethyl zinc(II)
Conditions | Yield |
---|---|
With methyl iodide In neat (no solvent) reaction of MeI with CuZn (excess of Zn); |
dimethylcadmium
ethylzinc(II) iodide
A
dimethyl zinc(II)
B
methylethylcadmium
Conditions | Yield |
---|---|
In gaseous matrix components vaporization into He, mixt. diln. further with He or H2, equilibration within 20 s in IR cell; IR spectroscopic monitoring; |
Conditions | Yield |
---|---|
In neat (no solvent) (exclusion of moisture); co-condensation of MeZnBH4 and NH3, maintainingthe mixture at -78°C for ca. 24 h, removal of excess NH3 at -78. degree.C, slow warming to room temp. under continuous pumping; elem. anal.; |
zinc
1,2-dibromomethane
A
bis(bromomethyl)zinc
B
dimethyl zinc(II)
C
bromomethylzinc bromide
Conditions | Yield |
---|---|
In tetrahydrofuran; tetrahydrofuran-d8 byproducts: ethylene, methyl bromide; 35-40°C, molar ratio of Zn:CH2Br2 is 1:1 to 1:4; |
methylethylcadmium
ethylzinc(II) iodide
A
dimethyl zinc(II)
B
diethylcadmium
Conditions | Yield |
---|---|
In gaseous matrix components vaporization into He, mixt. diln. further with He or H2, equilibration within 20 s in IR cell; IR spectroscopic monitoring; |
Conditions | Yield |
---|---|
In neat (no solvent) (exclusion of moisture); 190 K, continuous pumping; |
Conditions | Yield |
---|---|
In tetrahydrofuran; diethyl ether at 20℃; for 0.75h; | |
In diethyl ether for 2h; Reflux; Inert atmosphere; | |
In diethyl ether |
Conditions | Yield |
---|---|
In (2)H8-toluene at 26.84℃; Equilibrium constant; Solvent; Inert atmosphere; Schlenk technique; Glovebox; |
Conditions | Yield |
---|---|
(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride In 1,4-dioxane for 2h; Heating; | 100% |
Stage #1: 1-Bromonaphthalene; dimethyl zinc(II) With n-butyllithium In tetrahydrofuran; diethyl ether; hexane at 0℃; for 0.5h; Substitution; Stage #2: With oxovanadium(V) ethoxydichloride In tetrahydrofuran; diethyl ether; hexane at 20℃; for 3h; Oxidation; Alkylation; Further stages.; | 73% |
carbon dioxide
dimethyl zinc(II)
phenylacetylene
(E)-3-phenyl-2-butenoic acid
Conditions | Yield |
---|---|
Stage #1: carbon dioxide; phenylacetylene With bis(1,5-cyclooctadiene)nickel (0); 1,8-diazabicyclo[5.4.0]undec-7-ene In tetrahydrofuran at 0℃; for 1h; Stage #2: dimethyl zinc(II) In tetrahydrofuran; hexane at 0℃; for 2h; Further stages.; | 100% |
Conditions | Yield |
---|---|
(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride In 1,4-dioxane for 2h; Heating; | 100% |
2-bromophenyl methyl ketone
dimethyl zinc(II)
2-Methylacetophenone
Conditions | Yield |
---|---|
(1,2-bis(diphenylphosphino)ethane)palladium(II) chloride In 1,4-dioxane for 1.5h; Heating; | 100% |
Conditions | Yield |
---|---|
(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride In 1,4-dioxane for 1h; Heating; | 100% |
4-bromo-2-nitrobenzoic acid
dimethyl zinc(II)
4-methyl-2-nitrobenzoic acid
Conditions | Yield |
---|---|
(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride In 1,4-dioxane for 2h; Heating; | 100% |
Conditions | Yield |
---|---|
(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride In 1,4-dioxane for 1h; Heating; | 100% |
Conditions | Yield |
---|---|
Stage #1: carbon dioxide; dimethyl zinc(II); 1-methoxy-4-(4-phenylbut-1-yn-1-yl)benzene With bis(1,5-cyclooctadiene)nickel (0); 1,8-diazabicyclo[5.4.0]undec-7-ene In tetrahydrofuran; hexane at 20℃; Stage #2: diazomethane In diethyl ether at 0℃; | 100% |
(3Z,5R,6R,7E,9S)-1-trimethylsilyl-3-bromo-5,7,9-trimethyl-6-(t-butyldimethylsilyloxy)-11-phenyl-3,7-undecadien-1-yne
dimethyl zinc(II)
(3E,5R,6R,7E,9S)-1-trimethylsilyl-3,5,7,9-tetramethyl-6-(t-butyldimethylsilyloxy)-11-phenyl-3,7-undecadien-1-yne
Conditions | Yield |
---|---|
With bis(tri-t-butylphosphine)palladium(0) In tetrahydrofuran; toluene at 23℃; for 1h; | 100% |
dimethyl zinc(II)
Conditions | Yield |
---|---|
Stage #1: C18H17F4NO3S; dimethyl zinc(II); (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride In 1,4-dioxane; toluene for 2h; Heating / reflux; Stage #2: With methanol; water In 1,4-dioxane; ethyl acetate; toluene | 100% |
dimethyl zinc(II)
Conditions | Yield |
---|---|
In tetrahydrofuran; diethyl ether stirring (room temp., 0.5 h); evapn., chromy. (petroleum ether / CH2Cl2 = 3 : 1); elem. anal.; | 100% |
(HOC6H2(C(CH3)3)CH2)2(C6H2(C(CH3)3)(CCC6H5)CH2)2
dimethyl zinc(II)
(CH3)2Zn2((OC6H2(C(CH3)3)CH2)2(C6H2(C(CH3)3)(CCC6H5)CH2)2)
Conditions | Yield |
---|---|
In toluene under N2; soln. of ZnMe2 in toluene added to soln. of ligand in toluene;stirred at room temp. for 8 h; volatiles evapd.; | 100% |
(HOC6H2(C(CH3)3)CH2)2(C6H2(C(CH3)3)(CCC6H4CH3)CH2)2
dimethyl zinc(II)
(CH3)2Zn2((OC6H2(C(CH3)3)CH2)2(C6H2(C(CH3)3)(CCC6H4CH3)CH2)2)
Conditions | Yield |
---|---|
In toluene under N2; soln. of ZnMe2 in toluene added to soln. of ligand in toluene;stirred at room temp. for 8 h; volatiles evapd.; elem. anal.; | 100% |
(HOC6H2(C(CH3)3)CH2)2(C6H2(C(CH3)3)(CCC6H4OCH3)CH2)2
dimethyl zinc(II)
(CH3)2Zn2((OC6H2(C(CH3)3)CH2)2(C6H2(C(CH3)3)(CCC6H4OCH3)CH2)2)
Conditions | Yield |
---|---|
In toluene under N2; soln. of ZnMe2 in toluene added to soln. of ligand in toluene;stirred at room temp. for 8 h; volatiles evapd.; elem. anal.; | 100% |
5,11,17,23-tetra(tert-butyl)-25,27-dihydroxy-26,28-bis[p-(trifluoromethyl)phenylethynyl]calix[4]arene
dimethyl zinc(II)
(CH3)2Zn2((OC6H2(C(CH3)3)CH2)2(C6H2(C(CH3)3)(CCC6H4CF3)CH2)2)
Conditions | Yield |
---|---|
In toluene under N2; soln. of ZnMe2 in toluene added to soln. of ligand in toluene;stirred at room temp. for 8 h; volatiles evapd.; elem. anal.; | 100% |
(HOC6H2(C(CH3)3)CH2)2(C6H2(C(CH3)3)(CCC6H4CF3)CH2)C6H2(C(CH3)3)(CCC6H4OCH3)CH2
dimethyl zinc(II)
(CH3)2Zn2((OC6H2(C(CH3)3)CH2)2(C6H2(C(CH3)3)(CCC6H4CF3)CH2)C6H2(C(CH3)3)(CCC6H4OCH3)CH2)
Conditions | Yield |
---|---|
In toluene under N2; soln. of ZnMe2 in toluene added to soln. of ligand in toluene;stirred at room temp. for 8 h; volatiles evapd.; elem. anal.; | 100% |
(HOC6H2(C(CH3)3)CH2)2(C6H2(C(CH3)3)(CCC6H3(CF3)2)CH2)2
dimethyl zinc(II)
(CH3)2Zn2((OC6H2(C(CH3)3)CH2)2(C6H2(C(CH3)3)(CCC6H3(CF3)2)CH2)2)
Conditions | Yield |
---|---|
In toluene under N2; soln. of ZnMe2 in toluene added to soln. of ligand in toluene;stirred at room temp. for 8 h; volatiles evapd.; | 100% |
(3aR,4E,7aS)-4-(bromomethylene)-3a,4,5,6,7,7a-hexahydro-7a-methyl-3H-indene-1-carbaldehyde
dimethyl zinc(II)
(S)-1-{(3aS,7E,7aR)-7-(bromomethylene)-3a,4,5,6,7,7a-hexahydro-3a-methyl-1H-indene-3-yl}ethanol
Conditions | Yield |
---|---|
With titanium(IV) isopropylate; N,N’-(1R,2R)-cyclohexane-1,2-diylbis(1,1,1-trifluoromethanesulfonamide) In tert-butyl methyl ether at 20℃; for 1h; Product distribution / selectivity; | 100% |
dimethyl(phenyl)silyl lithium
1-Bromo-2-iodobenzene
dimethyl zinc(II)
Dimethyldiphenylsilane
Conditions | Yield |
---|---|
Stage #1: dimethyl(phenyl)silyl lithium; dimethyl zinc(II) In tetrahydrofuran; hexane at 0℃; for 0.5h; Stage #2: 1-Bromo-2-iodobenzene In tetrahydrofuran; hexane at 20℃; for 16h; Further stages.; | 100% |
Conditions | Yield |
---|---|
With zinc trifluoromethanesulfonate In hexane; dichloromethane at 0 - 20℃; for 1h; | 100% |
With zinc trifluoromethanesulfonate In hexane; dichloromethane at 0 - 20℃; for 1h; | 100% |
With zinc trifluoromethanesulfonate In hexane; dichloromethane at 0 - 20℃; | 100% |
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride In tetrahydrofuran at 20℃; | 100% |
Conditions | Yield |
---|---|
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; diisobutylaluminium hydride In 1,4-dioxane at 100℃; for 2.5h; | 100% |
methyl 6-(2,6-difluoro-3-(trifluoromethylsulfonyloxy)-phenyl)picolinate
dimethyl zinc(II)
methyl 6-(2,6-difluoro-3-methylphenyl)picolinate
Conditions | Yield |
---|---|
dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 In toluene at 80℃; for 2h; | 100% |
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0) In hexane at 0 - 20℃; for 12h; Inert atmosphere; | 100% |
With tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran; hexane at 0 - 20℃; for 12h; | 69.5 mg |
Re(κ1(P)-6-(diphenylphosphino)-2,2'-bipyridine)(CO)5][OTf]
dimethyl zinc(II)
[Re(κ1(P)-6-(diphenylphosphino)-2,2'-bipyridine*ZnMe)(μ2-COMe)(CO)4][OTf]
Conditions | Yield |
---|---|
In dichloromethane-d2 Zn compd. added to a soln. of Re complex, shaken; evapd. (vac.), triturated with pentane; obtained as an oil; elem. anal.; | 100% |
4'-bromo-2,2,2-trifluoroacetophenone
dimethyl zinc(II)
2‐(4‐bromophenyl)‐1,1,1‐trifluoropropan‐2‐ol
Conditions | Yield |
---|---|
With titanium tetrachloride In n-heptane; dichloromethane at -40 - 20℃; for 2.08333h; | 100% |
Stage #1: dimethyl zinc(II) With titanium tetrachloride In n-heptane; dichloromethane at -30℃; for 0.5h; Stage #2: 4'-bromo-2,2,2-trifluoroacetophenone In n-heptane; dichloromethane at -40 - 20℃; for 2h; | 100% |
Stage #1: dimethyl zinc(II) With titanium tetrachloride In n-heptane; dichloromethane at -30℃; for 0.5h; Stage #2: 4'-bromo-2,2,2-trifluoroacetophenone In n-heptane; dichloromethane at -40 - 20℃; for 2.08333h; | 100% |
dimethyl zinc(II)
Conditions | Yield |
---|---|
With dirhodium tetraacetate In toluene at 20℃; Inert atmosphere; | 100% |
dimethyl zinc(II)
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran; toluene at 0℃; for 0.166667h; Negishi Coupling; Inert atmosphere; | 100% |
dimethyl zinc(II)
Conditions | Yield |
---|---|
With titanium tetrachloride In dichloromethane; toluene at -40 - 20℃; Inert atmosphere; | 100% |
dimethyl zinc(II)
Conditions | Yield |
---|---|
Stage #1: dimethyl zinc(II) With titanium tetrachloride In toluene at -40℃; for 0.5h; Inert atmosphere; Stage #2: 1-bromo-3,6-dimethyl-9H-fluoren-9-one In dichloromethane; toluene at 20℃; Inert atmosphere; | 100% |
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