Biographical Memoirs Volume 91 (2009) / Chapter Skim
Currently Skimming:
HERBERT CHARLES BROWN
HERBERT CHARLES BROWN
Pages 78-91
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 79... ...
B Wetherill Research Professor Emeritus of Purdue University and one of the truly pioneering giants in the field of organic-organometallic chemistry, died of a heart attack on December 19, 2004, at age 92.
|
From page 80... ...
Award for Creative Research in Synthetic Organic Chemistry in 1960, the National Medal of Science in 1969, the ACS Roger Adams Award in 1971, the ACS Priestley Medal in 1981, the Perkin Medal in 1982, the American Institute of Chemists Gold Medal in 1985, the National Academy of Sciences Award in Chemical Sciences in 1987, the Emperor's Decoration: Order of the Rising Sun, Gold and Silver Star (Japan) in 1989, and the inaugural ACS H
|
From page 81... ...
After a series of unsuccessful attempts to obtain a job, he entered Crane Junior College operated by the City of Chicago. It was at this college that he met Sarah Baylen, a 16-year-old chemical engineering major and his future wife.
|
From page 82... ...
program at Wayne, but the department was still ill equipped. In search of research projects not requiring elaborate and expensive laboratory equipment, Brown decided to develop empirical theories to explain poorly understood steric effects.
|
From page 83... ...
As such, this represents one of the earliest examples of a highly enantioselective reaction under nonenzymatic conditions. Furthermore, the product HBIpc2 and its derivatives are relatively inexpensive and widely useful reagents not only for asymmetric hydroboration but also for asymmetric reduction2 as well as for allyl- and crotylboration.3 According to H
|
From page 84... ...
In such cases more conventional electron delocalization effects, such as resonance and hyperconjugation effects, may become dominant, and the nonclassical framework, which is appropriate for the parent norbornyl cation, may not be the best representation. It is this author's view that Brown was primarily cautioning the overuse of nonclassical structure involving sigma carbon-carbon bond participation in cases where such structures may not be the most representative or significant.
|
From page 85... ...
All of the awards and recognitions mentioned earlier were received by him while he was a Purdue faculty member. In recognition of his great accomplishments and contributions to Purdue University, one of the two main chemistry buildings was named the Brown Building, and the entire chemistry department has been renamed the Herbert C
|
From page 86... ...
Brown Award for Creative Work in Synthetic Methodology, which was predominantly endowed by the Browns, they provided a series of endowments for funding the Herbert C Brown Lectures in 1983, the Herbert C
|
From page 87... ...
Washington, D.C.: American Chemical Society, 1996.
|
From page 88... ...
Convenient synthesis of optically active alcohols and olefins of high optical purity and established configuration.� J
|
From page 89... ...
Lane. Light-induced reaction of bromine with trialkylboranes in presence of water -- remarkably simple procedure for union of 2 or 3 alkyl groups to produce highly substituted alcohols.
|
From page 90... ...
8. Synthetic utility of boronic esters of essentially 100-percent optical purity -- synthesis of primary amines of very high enantiomeric purities.
|
From page 91... ...
Milwaukee: Aldrich Chemical Co.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.