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Synthesis of Functionalized 1,4-Azaborinines by the Cyclization of Di-tert-butyliminoborane and Alkynes.

Journal of the American Chemical Society

Schäfer M, Beattie NA, Geetharani K, Schäfer J, Ewing WC, Krahfuß M, Hörl C, Dewhurst RD, Macgregor SA, Lambert C, Braunschweig H.
PMID: 27286231
J Am Chem Soc. 2016 Jul 06;138(26):8212-20. doi: 10.1021/jacs.6b04128. Epub 2016 Jun 27.

Di-tert-butyliminoborane is found to be a very useful synthon for the synthesis of a variety of functionalized 1,4-azaborinines by the Rh-mediated cyclization of iminoboranes with alkynes. The reactions proceed via [2 + 2] cycloaddition of iminoboranes and alkynes in...

Mild sp.

Organometallics

Lau S, Ward B, Zhou X, White AJP, Casely IJ, Macgregor SA, Crimmin MR.
PMID: 29151664
Organometallics. 2017 Sep 25;36(18):3654-3663. doi: 10.1021/acs.organomet.7b00632. Epub 2017 Sep 14.

The isolable ruthenium(II) bis(dinitrogen) complex [Ru(H)

Computational Studies of Carboxylate-Assisted C-H Activation and Functionalization at Group 8-10 Transition Metal Centers.

Chemical reviews

Davies DL, Macgregor SA, McMullin CL.
PMID: 28530807
Chem Rev. 2017 Jul 12;117(13):8649-8709. doi: 10.1021/acs.chemrev.6b00839. Epub 2017 May 22.

Computational studies on carboxylate-assisted C-H activation and functionalization at group 8-10 transition metal centers are reviewed. This Review is organized by metal and will cover work published from late 2009 until mid-2016. A brief overview of computational work prior...

A Patient-Derived Xenograft Model of Parameningeal Embryonal Rhabdomyosarcoma for Preclinical Studies.

Sarcoma

Hooper JE, Cantor EL, Ehlen MS, Banerjee A, Malempati S, Stenzel P, Woltjer RL, Gandour-Edwards R, Goodwin NC, Yang Y, Kaur P, Bult CJ, Airhart SD, Keller C.
PMID: 26696773
Sarcoma. 2015;2015:826124. doi: 10.1155/2015/826124. Epub 2015 Nov 30.

Embryonal rhabdomyosarcoma (eRMS) is one of the most common soft tissue sarcomas in children and adolescents. Parameningeal eRMS is a variant that is often more difficult to treat than eRMS occurring at other sites. A 14-year-old female with persistent...

Revision of Staple Line Failure Following Roux-en-Y Gastric Bypass for Obesity: a follow-up of weight loss.

Obesity surgery

Macgregor AM, Rand CS.
PMID: 10775908
Obes Surg. 1991 Jun;1(2):151-154. doi: 10.1381/096089291765561169.

Eighty-one patients with primary Roux-en-Y gastric bypass for obesity underwent revisional surgery for staple-line failure. All patients (100%) were included in the follow-up. Two years later, patients had an excess weight loss of 77%; 91% of the patients had...

Metabolic Implications of Obesity, Weight Loss and Energy Expenditure following Gastric Restrictive Surgery.

Obesity surgery

Macgregor AM.
PMID: 10742770
Obes Surg. 1994 May;4(2):129-143. doi: 10.1381/096089294765558700.

This review examines the energetics and metabolic parameters which influence the effectiveness of gastric restrictive surgery in achieving weight loss in the clinically severely obese patient. Among the subjects discussed are the metabolic determinants and consequences of obesity, energy...

Headache and hormone replacement therapy in the postmenopausal woman.

Current treatment options in neurology

MacGregor EA.
PMID: 19094831
Curr Treat Options Neurol. 2009 Jan;11(1):10-7. doi: 10.1007/s11940-009-0002-z.

Headache and migraine are common symptoms of the menopause, often associated with irregular periods, hot flashes, and night sweats. Perimenopausal women should routinely be asked about headache and migraine, so that they can be offered appropriate advice. If attacks...

Structure, reactivity, and computational studies of a novel ruthenium hydrogen sulfide dihydride complex.

Inorganic chemistry

Chatwin SL, Diggle RA, Jazzar RF, Macgregor SA, Mahon MF, Whittlesey MK.
PMID: 14632475
Inorg Chem. 2003 Dec 01;42(24):7695-7. doi: 10.1021/ic030241i.

Addition of 1 atm of H(2)S to [Ru(IMes)(2)(CO)(EtOH)H(2)] (IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene) affords the air-stable hydrogen sulfide dihydride complex, [Ru(IMes)(2)(CO)(H(2)S)H(2)] 2. Treatment of 2 with excess H(2)S leads to formation of the 16-electron bis-hydrosulfido complex, [Ru(IMes)(2)(CO)(SH)(2)] 3. Preliminary studies show...

The F/Ph rearrangement reaction of [(Ph3P)3RhF], the fluoride congener of Wilkinson's catalyst.

Journal of the American Chemical Society

Macgregor SA, Roe DC, Marshall WJ, Bloch KM, Bakhmutov VI, Grushin VV.
PMID: 16248673
J Am Chem Soc. 2005 Nov 02;127(43):15304-21. doi: 10.1021/ja054506z.

The fluoride congener of Wilkinson's catalyst, [(Ph(3)P)(3)RhF] (1), has been synthesized and fully characterized. Unlike Wilkinson's catalyst, 1 easily activates the inert C-Cl bond of ArCl (Ar = Ph, p-tolyl) under mild conditions (3 h at 80 degrees C)...

Formation of [Ru(NHC)4(eta(2)-O2)H]+: an unusual, high frequency hydride chemical shift and facile, reversible coordination of O2.

Journal of the American Chemical Society

Häller LJ, Mas-Marzá E, Moreno A, Lowe JP, Macgregor SA, Mahon MF, Pregosin PS, Whittlesey MK.
PMID: 19601678
J Am Chem Soc. 2009 Jul 22;131(28):9618-9. doi: 10.1021/ja9039345.

Reaction of the purple tetrakiscarbene ruthenium cation [Ru(I(i)Pr(2)Me(2))(4)H](+) (1, I(i)Pr(2)Me(2) = 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) with oxygen affords the pink eta(2)-O(2) hydride species [Ru(I(i)Pr(2)Me(2))(4)(eta(2)-O(2))H](+) (2). 2 displays (i) a very facile, reversible O(2) coordination and (ii) an unexpectedly positive hydride chemical shift,...

Composting process control based on interaction between microbial heat output and temperature.

Applied and environmental microbiology

Macgregor ST, Miller FC, Psarianos KM, Finstein MS.
PMID: 16345786
Appl Environ Microbiol. 1981 Jun;41(6):1321-30. doi: 10.1128/aem.41.6.1321-1330.1981.

Rational composting process control involves the interrelated factors of heat output, temperature, ventilation, and water removal. The heat is released microbially at the expense of organic material; temperature is an effect and, because it is a determinant of microbial...

Can choices between alternative hip prostheses be evidence based? a review of the economic evaluation literature.

Cost effectiveness and resource allocation : C/E

Davies C, Lorgelly P, Shemilt I, Mugford M, Tucker K, Macgregor A.
PMID: 21034434
Cost Eff Resour Alloc. 2010 Oct 29;8:20. doi: 10.1186/1478-7547-8-20.

BACKGROUND: Total hip replacement surgery places a considerable financial burden on health services and society. Given the large number of hip prostheses available to surgeons, reliable economic evidence is crucial to inform resource allocation decisions. This review summarises published...

Showing 1 to 12 of 566 entries