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 PORPHINE
101-60-0

PORPHINE synthesis

5synthesis methods
-

Yield:101-60-0 15%

Reaction Conditions:

with acetic acid;propionic acid at 140; for 0.5 h;

Steps:

Synthesis of N3 (meso-Tetraphenylporphyrin), C44H30N4 (H2TPP)
Acetic acid and propionic acid were used as solvents for the synthesis of H2TPP. More pure H2TPP with improved yield was obtained when propionic acid was used as solvent. Acetic/propionic acid (75 mL) was placed in a 250 mL round bottom flask. Benzaldehyde (5.0 mL, 49 mmol) was dissolved in propionic acid. The benzaldehyde solution was added during a time period of 3-4 minutes. The reaction mixture was refluxed for 30 minutes and then cooled to room temperature. After cooling, the reaction mixture was neutralized by using 50 mL of 10 N NaOH. The fractions were extracted by column chromatography using hexane: CH2Cl2 (8:2). An additional product formed from this reaction was chlorin with a yield of 15 %.

References:

Naveed Umar, Muhammad;Ur. Rashid, Haroon;Gul Sayed, Mian;Karim, Nasiara;Ghaffar, Rukhsana;Antonio Utrera Martines, Marco;Shoaib, Mohammad [Revue Roumaine de Chimie,2015,vol. 60,# 9,p. 861 - 866]

PORPHINE Related Search: