Download e-book for iPad: Carbon Monoxide as Reagent in the Formulation of Aromatic by Willemse J. A.

By Willemse J. A.

Show description

Read Online or Download Carbon Monoxide as Reagent in the Formulation of Aromatic Compounds PDF

Similar nonfiction_1 books

Download e-book for iPad: From COBOL to OOP by Markus Knasmüller

Written for the skilled COBOL programmer, this nuts and bolts advisor bargains a accomplished creation to OOP innovations, and offers a migration of 10 million traces of COBOL code to object-oriented programming.

Get Mammalian Artificial Chromosomes: Methods and Protocols PDF

Meeting of the elemental devices of mammalian chromosomes into synthetic constructs, and the aid in their parts to extra plausible dimensions, has now turn into a fact. In Mammalian man made Chromosomes: tools and Protocols, best scientists in mobile biology, genetics, phone culturing, and gene move current their most efficient equipment for the training, characterization, and use of man-made chromosomes.

New PDF release: Synthetic Analgesics. Morphinans

The duty of manufacturing this booklet might were very unlikely with out support from my neighbors and collaborators of the departments of natural Chemistry, analytical Chemistry and Pharmacology.

Extra resources for Carbon Monoxide as Reagent in the Formulation of Aromatic Compounds

Sample text

16). If however, the basicity of both reagents is assumed to fall in close proximity of each other and excess acid is used, the protonation of both CO and the aromatic substrate is a definite probability and the reaction should be governed by the presence and position of protonation equilibria. e. some un-protonated molecules are available to act as nucleophiles and thus allowing the reaction to proceed. 20). 16), might prevail during these reactions, it only holds true if it is assumed that CO is the more basic of all reactants employed.

C 50 208 45 12 p-Hydroxybenz-ald. 1% 8 9 10 11 a Toluene (386) Toluene (271) Anisole (231) Phenol (266) un-activated, b 5 5 5 5 activated at 150°C for 2h in argon, c calcined at 500°C for 50h in air In an effort to reduce the Brønsted acidity and increase the Lewis acidity, water was removed from the catalyst at 150°C. This catalyst also did not promote formylation (Run 3). These results raised the question whether the material used showed any catalytic activity. A literature procedure213 for acylation using benzoic acid anhydride failed (Run 5), which suggests that it may still contain small amounts of moisture, not removed during the activation step.

5: Attempted CO formylation and acylation of aromatics using sulphated zirconiumoxide as catalyst. 5 - Toluene (336) a 80 - 100 15 - b 80 - 100 20 - 20 Toluene (333) 20 4 Toluene (292) a 2 - Aceticanhydride (25) - 100 3 - 5 Toluene (141) 1 c - Benzoicanhydride (4) - 100 3 - 6 Toluene (141) 1 c - Benzoicanhydride (4) - 100 3 o-, m-, p-Mebenzophenone, benzoic acid 7 Toluene (271) 3c 50 - 45 12 - Anisole (231) c 50 - 45 12 - c 50 44 45 12 p-Toluald. 1% c 50 263 45 12 Phenol, no ald. c 50 208 45 12 p-Hydroxybenz-ald.

Download PDF sample

Carbon Monoxide as Reagent in the Formulation of Aromatic Compounds by Willemse J. A.

by Jason

Rated 4.81 of 5 – based on 36 votes