The Action of t-Butylmagnesium Chloride on t-Butylacetyl Chloride

Abstract

Vol. 60 acid chloride used while the secondary carbinol isolated accounted for 71% of the add chloride.All melting points are uncorrected. Summary1. The reaction of ¿-butylmagnesium chloride with a large excess of pivalyl chloride at -10°g ives a 32% yield of hexamethylacetone and an 8% yield of neopentyl alcohol as its pivalic ester.2. The reaction of a large excess of ¿-butylmagnesium chloride at about 40°with pivalyl, isobutyryl and «-butyryl chlorides results, respectively, in a 1.5, 63 and 71% yield of addition and in a 94, 20 and 9% yield of reduction of the acid chloride to primary alcohol.

Assessing Intra-Watershed Paleoenvironment and Landform Development: A Case Study from South-Central Pennsylvania

“…Artifacts and macrobotanical remains were separated from selected soil samples using the flotation method, while other soil samples were stored in a cool location for radiocarbon and/or microbotanical analysis. Pollen and phytolith analysis was performed by R. A. Varney, Chad Yost, and Linda Scott Cummings of the Paleo Research Institute in Golden, Colorado (Varney et al, 2009); macrobotanical remains were analyzed by Lucinda J. McWeeney, of Archaeo/Botanical IDs, Seneca Falls, New York (McWeeney, 2010); and diatoms were identified by Thomas Whitmore, of St. Petersburg, Florida (Whitmore, 2010). Radiocarbon dating was conducted by Beta Analytic, Inc., of Miami, Florida.…”

Creep recovery of rutile under reduced stress

“…Prior to testing, the sample was preheated in air at 1000°C for approximately 24 hours, then lowered to the test temperature for two hours to stabilize the system. This pre heat was utilized to insure near stoichiometry and essentially constant Haul and Just cited in [25] have reported a 72 kcal/mole activation en ergy for diffusion of 0 ^ ions, and Whitmore and Kawai [58] have reported that the activation energy for sintering is 70 kcal/mole, which they also -2 attribute 0 diffusion. In view of the above results the creep mechanism in rutile would appear to be due to the climb of edge dislocations.…”