𝔖 Bobbio Scriptorium
✦   LIBER   ✦

UV-Absorption of α,α,ω,ω-Tetraphenylcumulenes with Coplanar Benzene Rings

✍ Scribed by Priv.-Doz. H. Fischer; W. D. Hell


Book ID
101551088
Publisher
John Wiley and Sons
Year
1967
Tongue
English
Weight
224 KB
Volume
6
Category
Article
ISSN
0044-8249

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Cyclic poly(dimethylsiloxane) via ring-c
✍ Marcus Foston; Haskell W. Beckham 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 434 KB

Cyclic poly(dimethylsiloxane) (PDMS) was prepared from commercially available linear a,u-dihydroxy-PDMS by a platinum-catalyzed dehydrocoupling of its chain ends with a,u-dihydrido-PDMS in dilute solution. Ring closing was verified by MALDI-ToF mass spectrometry along with GPC, IR, 1 H and 29 Si NMR

Synthesis of Chiral 4-(ω-Hydroxyalkyl)py
✍ Andreas Otto; Burkhard Ziemer; Jürgen Liebscher 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 300 KB 👁 1 views

Enantiopure α-alkylidenelactones 7 were prepared by a Michael-like addition and ring-chain transformation affording optically active 4-(ω-hydroxyalkyl)pyrazolidin-3-Wittig reaction from α-bromolactones 4 and chiral aldehydes 6. Compounds 7 react with hydrazines 9 by stereoselective ones 11.