摘要:

AbstractOne of the topical problems of macromolecular chemistry is the question of the extent to which macromolecules in solution or in the amorphous solid state can engage in mutual interpenetration. The present article is concerned primarily with recent investigations on cross‐linking copolymerization and with inter‐and intramolecular reactions of polymers as a contribution to the study of molecular sh

ISSN:0570-0833    

DOI:10.1002/anie.197604511

出版商:Hüthig&Wepf Verlag    

年代:1976

数据来源: WILEY

摘要:

AbstractThe name vinamidines has been proposed for 1,5‐diazapentadienes: these compounds can be regarded as vinylogous amidines and at the same time as push‐pull substituted (and thereby stabilized) alkenes. Vinamidine and vinamidinium structural elements may also form part of a ring system. Characteristic of this class of compounds are their reactivity toward electrophiles (at Cβ) and nucleophiles (Cα) and their regenerative character,i.e.their tendency to undergo substitution instead of addition reactions. Reactions of vinamidinium salts with nucleophiles are of special preparative value: they leade.g.to pyrazoles, oxazoles, pyrimidines, diazepines, quinolines, and quinoli

ISSN:0570-0833    

DOI:10.1002/anie.197604591

出版商:Hüthig&Wepf Verlag    

年代:1976

数据来源: WILEY

摘要:

AbstractWith the aid of selected examples an overview is given of the development trends in phosphoruscarbon chemistry over the past few years. An attempt is made to demonstrate the relationships between various parameters and properties such as constitution, basicity, substitution by functional groups, reaction behavioretc.of the compounds. In the case of basis compounds containing methylphosphorus groups the state of development of industrially interesting processes is also outlined. In addition, the synthesis of a few bifunctional phosphorus‐carbon compounds which can be employed as comonomers in the production of polymers is describe

ISSN:0570-0833    

DOI:10.1002/anie.197604681

出版商:Hüthig&Wepf Verlag    

年代:1976

数据来源: WILEY

摘要:

AbstractThe results of intensive pure research into the chemistry and physics of fluorides can be pieced together to give an overall picture whose discernible outlines hold promise of numerous new compounds having unusual and in some cases unique properties. Modern technology is called upon to exploit them.

ISSN:0570-0833    

DOI:10.1002/anie.197604751

出版商:Hüthig&Wepf Verlag    

年代:1976

数据来源: WILEY

ISSN:0570-0833    

DOI:10.1002/anie.197604872

出版商:Hüthig&Wepf Verlag    

年代:1976

数据来源: WILEY

ISSN:0570-0833    

DOI:10.1002/anie.197604881

出版商:Hüthig&Wepf Verlag    

年代:1976

数据来源: WILEY

ISSN:0570-0833    

DOI:10.1002/anie.197604891

出版商:Hüthig&Wepf Verlag    

年代:1976

数据来源: WILEY

ISSN:0570-0833    

DOI:10.1002/anie.197604901

出版商:Hüthig&Wepf Verlag    

年代:1976

数据来源: WILEY

ISSN:0570-0833    

DOI:10.1002/anie.197604911

出版商:Hüthig&Wepf Verlag    

年代:1976

数据来源: WILEY

ISSN:0570-0833    

DOI:10.1002/anie.197604921

出版商:Hüthig&Wepf Verlag    

年代:1976

数据来源: WILEY