成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

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: