## Abstract __cis__‐ and __trans__‐(3,6‐D~2~)‐1,4‐cyclohexadienes **1a** and **1b** have been synthesized from __cis__‐3,4‐dichlorocyclobutene (5). Aromatization to benzene with DDQ is __cis__‐stereospecific with an uncertainty of 5%. This result is discussed in relation to concerted or stepwise me
✦ LIBER ✦
Spectrophotometric titration of phenothiazines using 2,3-dichloro-5,6-dicyano-1,4-benzoquinone
✍ Scribed by Rizk, Mohamed ;Zakhari, Nashaat A. ;Ibrahim, Fauzia ;Walash, Mohamed I.
- Publisher
- Springer-Verlag
- Year
- 1989
- Weight
- 508 KB
- Volume
- 97
- Category
- Article
- ISSN
- 0344-838X
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