ChemInform Abstract: Synthesis and Characterization of [2.2](5,13)Dibenzo[c;1]chrysenophane.
β Scribed by Hiroshi Matsubara; Mitsunobu Osatani; Koji Yano; Tomohiro Adachi; Koji Yamamoto
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 24 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0931-7597
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## Abstract 5β[4,5β^13^C~2~]β and 5β[1,5β^13^C~2~]Aminolevulinic acid (ALA) have been synthesized by the Gabriel condensation of potassium phthalimide with ethyl bromo[1,2β^13^C~2~]acetate (derived from [1,2β^13^C~2~]acetic acid) or ethyl bromo[2β^13^C]βacetate (derived from sodium [2β^13^C]acetate
SYNTHESIS OF (2s , 4S)-[5-l 3C] LEUC INE , (2R ,4S)-[5-' 3C] LEUC I NE , AND (2RS)-[1 ,2-13C,] LEUCINE D. John Aberhart\* and Bruce H. W e i l l e r The Worcester Foundation f o r Experimental B i o l o g y Shrewsbury, Massachusetts 01545 SUMMARY (2RSY3S)-[4-13 ClVal i n e was d i a z o t i z e d an