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Carboxylic Acids as Indicators of Parent Body ConditionsAlpha-hydroxy and alpha-amino carboxylic acids found on the Murchison meteorite are deuterium enriched. It is postulated that they arose from a common interstellar scurce: the reaction of carbonyl compounds in an aqueous mixture containing HCN and NH3. Carbonyl compounds react with HCN to form alpha-hydroxy nitriles, RR'CO + HCN right and left arrow RR'C(OH)CN. If ammonia is also present, the alpha-hydroxy nitriles will exist in equilibrium with the alpha-amino nitriles, RR'C(OH)CN + NH3 right and left arrow - RRCNH2CN + H2O. Both nitrites are hydrolyzed by water to form carboxylic acids: RR'C(OH)CN + H2O yields RR'C(OH)CO2H and RR'C(NH2)CN + H2O yields RR'C(NH2)CO2H.
Document ID
20020039032
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Lerner N. R.
(NASA Ames Research Center Moffett Field, CA United States)
Chang, Sherwood
Date Acquired
August 20, 2013
Publication Date
January 1, 1995
Subject Category
Astrophysics
Meeting Information
Meeting: Meteoritical Society Meeting
Location: Washington, DC
Country: United States
Start Date: September 11, 1995
End Date: September 15, 1995
Sponsors: Meteorological Society
Funding Number(s)
PROJECT: RTOP 152-13-60
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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