The biosynthesis of the 5-(p-aminophenyl)-l,2,3,4tetrahydroxypentane moiety of methanopterin was studied in methanogenic bacteria. By comparing the extent of deuteration of the benzyl group of 5-(p-aminophenyl)-1,2,3,4-tetrahydroxypentane with the benzyl group of phenylalanine isolated from cells gr
โฆ LIBER โฆ
Stereochemistry of the 5-(p-aminophenyl)-1,2,3,4-tetrahydroxypentane portion of methanopterin
โ Scribed by White, Robert H.
- Book ID
- 126150689
- Publisher
- American Chemical Society
- Year
- 1986
- Tongue
- English
- Weight
- 301 KB
- Volume
- 108
- Category
- Article
- ISSN
- 0002-7863
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## Abstract __cis__โ and __trans__โ(3,6โD~2~)โ1,4โcyclohexadienes **1a** and **1b** have been synthesized from __cis__โ3,4โdichlorocyclobutene (5). Aromatization to benzene with DDQ is __cis__โstereospecific with an uncertainty of 5%. This result is discussed in relation to concerted or stepwise me