345105

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Rhodococcus opacus strain PD630 as a new source of high-value single-cell oil? Isolation and characterization of triacylglycerols and other storage lipids.

M Wältermann et al.

Microbiology (Reading, England), 146 ( Pt 5), 1143-1149 (2000-06-01)

The triacylglycerol (TAG)-accumulating, hydrocarbon-degrading bacterium Rhodococcus opacus strain PD630 and chemically induced storage-deficient mutants derived from this strain were investigated for their capability to accumulate storage lipids in the cytoplasm during cultivation under nitrogen-limiting conditions. Acylglycerols were analysed by matrix-associated

Studies of the formation of all-carbon quaternary centres, en route to lyngbyatoxin A. A comparison of phenyl and 7-substituted indole systems.

Janne E Tønder et al.

Organic & biomolecular chemistry, 2(10), 1447-1455 (2004-05-12)

Copper mediated allylic substitutions and conjugate additions to geranyl, cinnamyl and allylic indole compounds have been investigated with the aim of finding a method for the creation of the all-carbon quaternary centre present in the natural product lyngbyatoxin A. Reaction

A new efficient synthetic method for 2- and 4-hydroxy-17 alpha-ethynylestradiol.

R G Xie et al.

Steroids, 55(11), 488-490 (1990-11-01)

The reaction of ethyl magnesium bromide and 17 alpha-ethynylestradiol with formaldehyde in the presence of triethyl phosphate or hexamethylphosphoramide gave the 2- and 4-formyl-17 alpha-ethynylestradiol in high yield. Treatment of the formyl derivatives with an alkaline solution of hydrogen peroxide

New reagent system for attaining high regio- and stereoselectivities in allylic displacement of 4-cyclopentene-1,3-diol monoacetate with aryl- and alkenylmagnesium bromides.

Yuichi Kobayashi et al.

Organic letters, 7(2), 183-186 (2005-01-14)

[Reaction: see text] Low regioselectivity of RMgBr (R = aryl, alkenyl) in the CuCN-catalyzed reaction with 4-cyclopentene-1,3-diol monoacetate is improved by addition of LiCl or MgCl2 to a similar extent as previously obtained with RMgCl (>90:10). The limitation encountered in

Trifluoromethanesulfonic anhydride-promoted alpha-bromination of ketones with grignard reagent or magnesium bromide.

T Nishiyama et al.

Chemical & pharmaceutical bulletin, 48(12), 1999-2002 (2001-01-06)

The direct alpha-bromination of various ketones using trifluoromethanesulfonic anhydride and Grignard reagent or magnesium bromide in ether gave the corresponding alpha-bromo ketones in moderate to good yields under mild reaction conditions.

A direct method for regiospecific analysis of TAG using alpha-MAG.

F Turon et al.

Lipids, 37(8), 817-821 (2002-10-10)

An analytical procedure was developed for regiodistribution analysis of TAG using alpha-MAG prepared by an ethyl magnesium bromide deacylation. In the present communication, the deacylation procedure is shown to lead to representative alpha-MAG, allowing the composition of the native TAG

Preparation of ethyl magnesium bromide for regiospecific analysis of triacylglycerols.

Yasuhiro Ando et al.

Journal of oleo science, 57(8), 459-462 (2008-07-16)

This paper presents a procedure for preparation of a Grignard reagent, ethyl magnesium bromide, used for partial deacylation of triacylglycerols (TAG) in their regiospecific analysis. Magnesium turnings were reacted with ethereal solution of bromoethane in a screw-capped test tube to

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