## Abstract The effects of __N__‐methyl‐2‐pyrrolidinone (NMP) as solvent on the polymerization reactions of 1,3‐bis(4‐chlorobenzoyl)benzene (1,3‐CBB) and 1,3‐bis(4‐fluorobenzoyl)benzene (1,3‐FBB) with 4,4′‐isopropylidenediphenol (bisphenol‐A) were examined. The failure of these reactions to produce
The facile cyclometallation reaction of 1,3-BIS[(diphenyl-phosphino)methyl]benzene
✍ Scribed by Heinrich Rimml; Luigi M. Venanzi
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 127 KB
- Volume
- 259
- Category
- Article
- ISSN
- 0022-328X
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The synthesis and reactions of 2-bis(methylthio)methylene-l-methyl-3-oxoindole 5 as a novel 3-carbon 1,3-bielectrophilic component are described. Thus cycioaromatization of 5 with allyi, methallyl and crotyl Grignard reagents affords substituted carbazoles 12a-e in good yields. Cycloaromatization of
## Abstract Bis‐1,2,3,4‐tetrahydropyrimidinylalkanes/benzenes **2a‐f** have been synthesized by the reaction of N,S‐acetals with formaldehyde and diamines. Reaction of pyrazoles **3a** and **3b** with diamines and formaldehyde yield bis‐4,5,6,7‐tetrahydropyrazolo[3,4‐__d__]pyrimidinylalkanes **4a‐b