Intermediates and shunt products of massiliachelin biosynthesis in Massilia sp. NR 4-1

• Till Steinmetz,
• Blaise Kimbadi Lombe and
• Markus Nett

Beilstein J. Org. Chem. 2023, 19, 909–917, doi:10.3762/bjoc.19.69

• The CAS assay solution was prepared according to a previously reported protocol [20]. Briefly, chrome azurol S (CAS) and hexadecyltrimethylammonium bromide (HDTMA) were independently dissolved in water to prepare 2 mM and 6.585 M solutions, respectively. In a beaker, 7.5 mL of the CAS solution were

Formose reaction accelerated in aerosol-OT reverse micelles

• Makoto Masaoka,
• Tomohiro Michitaka and
• Akihito Hashidzume

Beilstein J. Org. Chem. 2016, 12, 2663–2667, doi:10.3762/bjoc.12.262

• (TX), and hexadecyltrimethylammonium bromide (CTAB) was investigated. Time–conversion data have indicated that the interfacial water layer of AOT reverse micelles is a medium that accelerates formation of glycolaldehyde in the formose reaction. The 13C NMR spectra for the products of the formose

• reaction using formaldehyde-13C as starting material are indicative of the formation of ethylene glycol as a major product. Keywords: aerosol-OT; formose reaction; hexadecyltrimethylammonium bromide; interfacial layer; reverse micelles; triton X-100; water pool; Findings The ‘formose reaction’ yields a

• (AOT), nonionic triton X-100 (TX), and cationic hexadecyltrimethylammonium bromide (CTAB) (Scheme 1). Before investigating the formose reaction, the sizes of water pools of the reverse micelles formed from the surfactants were evaluated under several conditions (see Supporting Information File 1). In

Phaeochromycins F–H, three new polyketide metabolites from Streptomyces sp. DSS-18

• Jian Li,
• Chun-Hua Lu,
• Bao-Bing Zhao,
• Zhong-Hui Zheng and
• Yue-Mao Shen

Beilstein J. Org. Chem. 2008, 4, No. 46, doi:10.3762/bjoc.4.46

• was obtained by sodium dodecyl sulfate (SDS)-proteinase K lysis, selective precipitation of cell debris and polysaccharides with CTAB (hexadecyltrimethylammonium bromide), and isopropanol precipitation [9]. The bacterial strain was incubated on slope of GS media in a test tube at 28 °C for 5 d to