cas 6443-72-7, 3,4-Dimethoxycinnamonitrile | Articles data ｜lookchem

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6443-72-7

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Modular Approach to 9-Monosubstituted Fluorene Derivatives Using MoV Reagents
Oxidative coupling using molybdenum(V) reagents provides fast access to highly functionalized 9-monosubstituted fluorenes. This synthetic approach is highly modular, is high yielding, and tolerates a variety of labile moieties, e.g. amides or iodo groups. The established protocol leads to promising precursors for pharmacologically important analogues of melatonin.
Franzmann, Peter,Trosien, Simon,Schubert, Moritz,Waldvogel, Siegfried R.
supporting information
p. 1182 - 1185
(2016/03/15)

Pentaalkylstiboranes. 1. Synthesis of Homobenzylic Alcohols, Homoallylic Alcohols, Ethyl 5-Aryl-5-hydroxypent-2-enoates, and β-Hydroxypropionic Acid Derivatives via Pentaalkylstiboranes
Although pentaalkylstiboranes have long been known, their applications in organic synthesis have not been exploited.It has been found that quaternary stibonium salts (n-Bu3SbCH2E)+X- (E = Ph, CH=CH2, CH=CHCO2Et, CO2Et, CN; X = Br, I, BPh4) on treatment with RLi (R = n-Bu, t-Bu, Ph) afford pentaalkylstiboranes, n-Bu3Sb(R)CH2E, which react with aromatic aldehydes to give, after subsequent hydrolysis, homobenzylic alcohols, homoallylic alcohols, ethyl 5-aryl-5-hydroxypent-2-enoates, and β-aryl-β-hydroxypropionitriles, respectively, in good to excellent yields.The reaction is chemoselective for aldehydes.
Huang, Yao-Zeng,Liao, Yi
p. 1381 - 1386
(2007/10/02)

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Chemical Properties

Appearance/Colour :Clear yellow liquid
Melting Point: 181-184 °C
Boiling Point: 339.2 °C at 760 mmHg
Flash Point:134.3 °C
Density: 1.101 g/cm³
Vapor Pressure: 4.8E-06mmHg at 25°C
Refractive Index: 1.5012 (estimate)
PSA: 42.25000
LogP: 2.24058

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