Professional Writing in English Courseware developed by Kevin Costello from various sources in the public domain Intercultural Studies Group Copyediting Publishers’ style sheets Publishing houses often issue their own set of guidelines and instructions on style. This is known as a style sheet. Here, for example, are some instructions from the style sheet you can find at the web site of St. Jerome Publishing (http://www.stjerome.co.uk/author.html). Spelling & Other Conventions (i) Use -ize rather than -ise generally, except for standard spellings such as advertise and televise. (ii) Use British spelling wherever possible, for example humour rather than humor. (iii) Try to avoid sexist language. Replace he and he or she with they or a repetition of the noun where possible, otherwise use s/he, his/her and him or her. (iv) Use endnotes rather than footnotes - if necessary. (v) Use italics for lexical items and titles of publications and boldface for technical terms. (vi) Use a single rather than double space after full stops, commas and semicolons. (vii) Justify your text to the left and do not use the hyphenation facility. (viii) Send two copies of your manuscript on a PC-compatible disk, one copy in ASCII format (not preserving line breaks) and one word-processed (preferably using Word 6). Make sure your printout matches the disk version exactly and provide full details of the hardware and software used. (ix) Send a separate list of any characters in your file which are not found on a standard English keyboard. The aim is to create consistency among all the texts produced by a given publisher. This is especially important in journals, magazines and collections of articles, where several 1 authors contribute to a single issue or book. Once the contribution arrives, the copyeditor checks that the instructions have been followed. House style also helps create a distinctive institutional voice and visual image for a publication. Exercise 3. Style sheets Use the style sheet of Analytica Chimica Acta to copyedit the manuscript entitled Investigative Study in our laboratory of Mixed Thioether-Phosphite and PhosphinePhosphite Ligands Used in Industry for the Copper-Catalyzed Asymmetric 1,4-Addition of Organometallic Reagents to Cyclohexenone”. You don’t need to edit the manuscript for style. 2 INSTRUCTIONS TO AUTHORS Title and initial layout The title page should contain only the manuscript title, the authors' names, their affiliation, and, for indexing purposes, five keywords or phrases. In a manuscript by several authors, the corresponding author's name should be marked by an asterisk, and the footnote “Author to whom correspondence should be addressed” should be placed at the bottom of the page. Abstract The abstract should not exceed 250 words and it should condense the essential features of the review article, with the focus on the major advances in the field. Figures Figures should be referred to as "Fig. (1)", Fig. (2)" etc. in the text with the Figure numbers given in bold within round brackets. Each figure should be accompanied by a caption, which should describe briefly the important features displayed in the Figure. Tables All tables should be numbered with Arabic numerals and have brief descriptive headings; they should be typed on separate pages. The layout should be given serious thought. Column headings should be brief, but should include the units in parentheses, where relevant. Footnotes to tables are denoted by superscript a, b, c... The following usage is recommended: e.g., if molar absorptivities are listed, the heading should be (104 l mol-1 cm-1) so that a number 2.32 in the column signifies 23 200. Acknowledgements Acknowledgements should be kept to a minimum. The source of any financial support received for the work being published must be indicated in the Acknowledgements section. (It will be assumed that the absence of such an acknowledgement is statement by the authors that no support was received). Recognition of personal assistance should be given as a separate paragraph. References References should be indicated in the text by consecutive superior Arabic numbers in brackets. The full list should be collected and typed on a separate sheet at the end of the paper in numerical order. Listed references should be complete in all details but excluding article titles in journals. Authors’ initials should precede their names; journal title abbreviations should conform to the style of Chemical Abstracts. Examples: (1) A.B. Smith and C.D. Jones, J. Appl. Phys, 34, 296-300 (1965). (2) R.B. Brown Molecular Spectroscopy (Gordon and Breach, New York, 1970), 3rd ed., 300pp. 3 Investigative Study in our laboratory of Mixed Thioether-Phosphite and Phosphine-Phosphite Ligands Used in Industry for the CopperCatalyzed Asymmetric 1,4-Addition of Organometallic Reagents to Cyclohexenone. Montserrat Dominguez, Jordi Pàmies, Gemma Nieto, Amalia Ruiz, Carme Clotet. Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Pl. Imperial Tarraco 1, 43005 Tarragona, Spain. Abstract A series of thioether-phosphite and phosphine-phosphite ligands have been tested in the copper-catalyzed asymmetric addition of organometallic regents to 2-cyclohexenone. In all cases, excellent reaction rates (TOF>1200 h-1) and chemoselectivities for the 1,4product and moderate enantioselectivities have been obtained. Keywords: Conjugate addition; Copper; Thioether-phosphite; Phosphine-phosphite; Enantioselective catalysis. 1. Introduction The 1,4-addition of organometallic reagents to ,-unsaturated carbonyl compounds is an important process for C-C bond formation in organic synthesis.[ i , ii ] Although organocuprates and copper catalyzed 1,4-additions of Grignard reagents are most frequently employed, a number of alternative reagents, based on other metal catalysts (i.e. Ni and Mn) and on other organometallic reagents (i.e. ZnR2 and AlR3), have been recently developed. Several successful methods for enantioselective 1,4-addition have been described. These were mainly based on chiral auxiliaries or stoichiometric organometallic 4 reagents. Only a few were based on highly enantioselective catalytic processes. A prominent position in the rapid development of the latter field is occupied by the copper-catalyzed, ligand accelerated, 1,4-addition of organozinc reagents. Thus, excellent enantioselectivities have been obtained using chiral phosphoroamidites, phosphites, bidentate P-N ligands and Schiff base ligands. However, further investigations are required in order to understand how to obtain an efficient enantiocontrol. In this context, the design of new ligands is still a highly significant field of research. Following our interest in using carbohydrates as an available chiral source for ligands and bearing in mind the idea that two different donor sites can a priori match the intermediates better and so influence their reactivity and enantioselectivity, we herein report the use of thioether-phosphite 1 and phosphine-phosphite 2 ligands (Figure 1) in the enantioselective copper-catalyzed 1,4-addition of organometallic reagents to 2cyclohexenone. R' R' R' R' O RS O P OO Ph2 P R' O 1a 1b 1c 1d 1e O R' O R = Me; R' = t-Bu R = i-Pr; R' = t-Bu R = Ph; R' = t-Bu R = i-Pr; R' = H R = Ph, R' = H O R' O P OO Ph2 P R' O O 2a R' = t-Bu 2b R' = H O P OO O O 2c (S)ax 2d (R)ax <<Figure I>> 5 Table 1. Asymmetric 1,4-addition of diethylzinc to 2-cyclohexenone.1 O O Cu(OTf) / L* 2 * Et ZnEt 2 TOF2 % Conv3 %-1,44 % ee5 Entry L* Solvent T(ºC) 1 1a Toluene 0 744 62 98 17 (R) 2 1a CH2Cl2 0 1116 93 100 18 (R) 3 1a THF 0 1068 89 97 11 (R) 4 1a CH2Cl2 25 >1200 100 99 15 (R) 5 1a CH2Cl2 -20 456 1006 100 13 (R) 6 1a CH2Cl2 -40 144 357 99 9 (R) 7 1a CH2Cl2 0 1092 91 99 17 (R) 8 1b CH2Cl2 0 >1200 100 99 9 (R) 9 1c CH2Cl2 0 1116 93 100 11 (R) 10 1d CH2Cl2 0 888 74 100 27 (R) 11 1e CH2Cl2 0 768 64 99 41 (R) 12 2a CH2Cl2 0 >1200 100 99 12 (S) 13 2b CH2Cl2 0 780 65 99 19 (S) 14 2c CH2Cl2 0 732 61 100 10 (R) 15 2d CH2Cl2 0 756 63 99 9 (S) Reaction conditions: Cu(OTf)2 (0.025 mmol), ligand (0.025 mmol), ZnEt2 (3.5 mmol), substrate (2.5 mmol), solvent (6 mL). 2 TOF in mol productmol Cu-1h-1 determined after 5 minutes reaction time by GC. 3 % Conversion determined by GC using undecane as internal standard after 5 minutes. 4 Chemoselectivity in 1,4-product determined by GC using undecane as internal standard. 5 Enantiomeric excess measured by GC using Lipodex A column. 6 Conversion determined after 15 minutes. 7 0.05 mmol of ligand used. 1 Acknowledgements 6 We thank the Spanish Ministerio de Educación y Cultura and the Generalitat de Catalunya (CIRIT) for their financial support (PB97-0407-CO5-01). We would also like to thank Prof. J.P. Watson of the University of Manchester for his invaluable comments. References 1 P. Perlmutter, Conjugate Addition Reactions in Organic Synthesis; Pergamon: Oxford, 1992. 2 K. Tomioka, Y. Nagaoka, in E. N. Jacobsen, A. Pfaltz, H. Yamamoto (Eds.), Comprehensive Asymmetric Catalysis, Springer: Berlin, 1999; Chapter 31. 7