天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List 3METHYL4NITROBIPHENYL
69314-47-2

3METHYL4NITROBIPHENYL synthesis

8synthesis methods
-

Yield:69314-47-2 90 %

Reaction Conditions:

with tetrakis(triphenylphosphine) palladium(0);potassium carbonate in 1,4-dioxane;water at 100;

Steps:

1.2 Step two:

In the compound 4-chloro-2-methyl-1-nitrobenzeneAfter ((2.57g, 15mmol) was dissolved in 1,4-dioxane (130mL),An aqueous solution of phenylboronic acid (1.83 g, 15 mmol), Pd(PPh3)4 (0.18 g, 0.15 mmol) and K2CO3 (12.8 g, 93 mmol) was added thereto, and the resultant was stirred at 100° C. for 6 hours.After the reaction was terminated, the resultant was cooled to room temperature, and extracted with distilled water and ethyl acetate.The organic layer was dried over MgSO4, and then filtered and concentrated.Using ethyl acetate and hexane as a developing solvent, the concentrated residue was purified by column chromatography to obtain the target compound 3-methyl-4-nitro-1,1'-biphenyl (2.88g, yield 90% ).

References:

CN115417845,2022,A Location in patent:Paragraph 0033; 0034

3METHYL4NITROBIPHENYL Related Search: