Thiosteroids. XXIII. Diels Alder Reactions of 5'-Methylfuro-[4', 3', 2', -4, 5, 6] pregn-5-ene-3, 20-dione

6 - ( 1 , 3 - Dihydroxy - 3 - phenylpropylidene ) - 5 - hydroxy - 2 , 2 , 4 - trimethylcyclohex - 4 - ene - 1 , 3 - dione

A novel compound involved in the aroma of the fruit Campomanesia lineatifolia was isolated; the structure was determined by spectroscopic methods, mainly 1D and 2D NMR.

Number 2 - 1 3 - 1 4 - 1 5 - 1 5 - 2 5 - 3 5 - 4 5 - 5 5 - 6 5 - 7 5 - 8 6 - 1 •

A decentralized failure detection and isolation (FDI) methodology, which is robust with respect to model uncertainties and noise, is presented. Redundancy metrics are developed, and optimization problems are posed for the choices of robust parity relations. Closed-form solutions for some special failure cases are given. Connections are drawn with other disciplines, and the use of the metrics to...

3 4 5 6

’ 0 ’ 1 ’ 2 ’ 3 ’ 4 ’ 5 ’ 6 ’ 7 ’ 20

Based on the frequent requests for help that I have received in the past months from users who want to configure TEX or LTEX for typesetting in several languages, it seems that this sort of information is not adequately covered in the documentation available to most do-it-yourself users. This tutorial is intended to give basic information on this topic. The related subject of hyphenation patter...

4-(5-Bromo-2-hydroxy­phen­yl)but-3-ene-2-one

The molecule of the title compound, C(10)H(9)BrO(2), a doubly conjugated unsaturated ketone, is almost planar (r.m.s. deviation of the non-H atoms = 0.039 Å). In the crystal structure, two mol-ecules are linked across a centre of inversion to form a hydrogen-bonded dimer by way of two O-H⋯O links.