If syntheses produce products, which enter as substrates in others again, these can be linked to each other, provided that the syntheses regarded are situated in the very same project. For example, already syntheses enlisted in other projects can be copied into the project opened by the function EXCHANGE. Syntheses are linked with each other by not entering them manually but integrating them form the project via the toolbar IMPORT (see previous chapter 3.6.2). Substances enlisted already can be transcribed (except for the comment field). Figure 28 shows how, e.g., the substrate anisole as product is imported from another synthesis called ‘ANISOLE (ORGANIKUM)’ .
Figure
28
Import of a product of another synthesis of the project
It is about the synthesis of anisole; i.e. the methylation of phenol with dimethyl sulfate described in the Organikum (20. Ed., Deutscher Verlag der Wissenschaften, Berlin, 1996, ISBN 3-335-00492-2) is considered to be imported as precedent synthesis.
Scheme 3 Synthesis of anisole
In the register sheet anisole of the synthesis ‘methoxyacetophenone; 4- (Organikum)’, where the synthesis of anisole was imported into, appears (Figure 30) next to the substance name the appendix ‘imported from “anisole (Organikum)”’ in the information field.
To the synthesis’ name – in our example ‘methoxyacetophenone; p-(Organikum)’ – a modified symbol is prefixed, that should indicate that this is a synthesis sequence:
Figure 29 Project
with syntheses and a synthesis sequence (marked)
By the way, we would like to mention that, despite the creation of synthesis sequences, catalysts as products of other syntheses can be imported, as well.
After creating synthesis sequences, now as before you got the possibility to change data in every single synthesis, with the corresponding consequences for the whole synthesis sequence, respectively, the chain. But the change has no direct consequences for the calculation. You update via SYNTHESIS SEQUENCE in the command line:
Figure 30
Reimport
of syntheses of preceding synthesis’ steps
REIMPORT means that the synthesis step for the substance production of the register sheet opened imports again and that, in this way, its data set is updated. If the complete synthesis sequence should be updated for the substance production, you select REIMPORT (RECURSIVE). If all other substances, which register sheets are not opened, should be updated thereby, as well, you select REIMPORT (RECURSIVE, FOR ALL SUBSTANCES).
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