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List of used abbreviations - RosDok - Universität Rostock

List of used abbreviations - RosDok - Universität Rostock

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R 1<br />

+<br />

SAr OSiMe 3<br />

OMe<br />

3a-i,k-m,p<br />

OR<br />

O<br />

11a-c<br />

R 2<br />

i<br />

30<br />

R 1<br />

SAr<br />

12a-r<br />

O<br />

R 2<br />

OMe<br />

Scheme 11. Synthesis <strong>of</strong> 12a-r; conditions: i: 1) TiCl4, CH2Cl2, −78 to 20 °C, 20 h; 2)<br />

NaHCO3, H2O<br />

The structure <strong>of</strong> all products was established by spectroscopic methods. The<br />

structure <strong>of</strong> 12i was independently confirmed by X-ray crystal structure analysis<br />

(Figure 1). 30

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