Only two examples of cycloaddition to ynamines have so far been reported 121. By 1,3-dipolar cycloaddition under the conditions described previously 131, ynamines readily afford dialkylamino-substituted heterocycles ( I ) (Table 1). The structure of the products follows from analytical data and in a
Chlorination of polyesters
โ Scribed by W. J. Jackson Jr.; J. R. Caldwell; K. P. Perry
- Publisher
- John Wiley and Sons
- Year
- 1968
- Tongue
- English
- Weight
- 976 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
By E. CALITZENSTEIN (the laic) and C. \\'OOLF The chlorination of ethylene in the liquid phase to form I : 2dichloroethane (ethylene dichloride), has been investigated in some detail, catalysts such as antimony trichloride and ferric chloride being employed, at tempentures hctwecn 4" and 44" c. The
## Abstract The work on the chlorination at ordinary temperatures of the lower olefines in the liquid phase, and in the presence of ferric chloride and antimony trichloride as catalysts, has been continued, and the reactions of propylene have been studied. As with ethylene, the main reaction was t
o f a paper read before the Institution o f Engineers-in-Charge, on February 9, l93t) iihdcrll ~ncthotls of water purificntion may incIucIc ((1) storage and ctcrntion, (Zt) addition of liuic or sochi t o correct acidity, (c) congulntioii to nssist sedimentation and to itnprorc (d) scclitncntntion, (
The effects of chlorine on three kinds of aromatic polyamides: those not containing a substituent, those containing substituents, and those containing heterocyclic aromatic rings, were studied. The correlations between the chemical structures of polyamides and the reactivity to hypochlorous acid wer