Synthesis of phthalocyanines with tridentate branched bulky and alkylthio groups
✍ Scribed by Esin Hamuryudan; Sebnur Merey; Zehra Altuntas Bayir
- Book ID
- 108401571
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 155 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0143-7208
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## Abstract Enantiopure 5,5‐disubstituted __t__‐butyl 2‐__t__‐butyl‐3‐methyl‐4‐oxoimidazolidine‐1‐carboxylates readily available by diastereoselective double alkylation of the parent compound (Boc‐BMI) can be converted to α‐branched α‐amino acids with two bulky substituents (PhCH~2~/Et, PhCH~2~/__i
New dianhydrides containing t-butyl and phenyl pendant groups have been synthesized and used as monomers, together with commercial diamines, to prepare novel polyimides. The influence of the chemical structure of the monomers on their reactivity has been studied by quantum semiempirical methods. The