Theoretical study of the ring-opening reactions of 2H-azirines?a classification of substituent effects

2002 ◽  
Vol 15 (8) ◽  
pp. 514-518 ◽  
Author(s):  
Martin Klessinger ◽  
Christian Bornemann
Keyword(s):  
Ring Opening ◽  
Theoretical Study ◽  
Substituent Effects ◽  
Ring Opening Reactions

Substituent Effects in Mechanochemical Allowed and Forbidden Cyclobutene Ring-Opening Reactions

2021 ◽  
Author(s):  
Cameron L. Brown ◽  
Brandon H. Bowser ◽  
Jan Meisner ◽  
Tatiana B. Kouznetsova ◽  
Stefan Seritan ◽  
...  
Keyword(s):  
Ring Opening ◽  
Substituent Effects ◽  
Ring Opening Reactions

scholarly journals Theoretical Study on the Ring-Opening Reactions of Cyclopropenes Mediated by a AuI Complex

2013 ◽  
Vol 78 (19) ◽  
pp. 9553-9559 ◽  
Author(s):  
Nasir Ahmad Rajabi ◽  
Mona Jalali Atashgah ◽  
Rasool BabaAhmadi ◽  
Christopher Hyland ◽  
Alireza Ariafard
Keyword(s):  
Ring Opening ◽  
Theoretical Study ◽  
Ring Opening Reactions

scholarly journals Review on the Accelerated and Low-Temperature Polymerization of Benzoxazine Resins: Addition Polymerizable Sustainable Polymers

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1260
Author(s):  
Bimlesh Lochab ◽  
Monisha Monisha ◽  
Nagarjuna Amarnath ◽  
Pratibha Sharma ◽  
Sourav Mukherjee ◽  
...  
Keyword(s):  
Low Temperature ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
The Third ◽  
Current Review ◽  
Ring Opening Reactions ◽  
Evolution Of Structure ◽  
Areas Of Interest

Due to their outstanding and versatile properties, polybenzoxazines have quickly occupied a great niche of applications. Developing the ability to polymerize benzoxazine resin at lower temperatures than the current capability is essential in taking advantage of these exceptional properties and remains to be most challenging subject in the field. The current review is classified into several parts to achieve this goal. In this review, fundamentals on the synthesis and evolution of structure, which led to classification of PBz in different generations, are discussed. Classifications of PBzs are defined depending on building block as well as how structure is evolved and property obtained. Progress on the utility of biobased feedstocks from various bio-/waste-mass is also discussed and compared, wherever possible. The second part of review discusses the probable polymerization mechanism proposed for the ring-opening reactions. This is complementary to the third section, where the effect of catalysts/initiators has on triggering polymerization at low temperature is discussed extensively. The role of additional functionalities in influencing the temperature of polymerization is also discussed. There has been a shift in paradigm beyond the lowering of ring-opening polymerization (ROP) temperature and other areas of interest, such as adaptation of molecular functionality with simultaneous improvement of properties.

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