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Model studies related to the cofactor of the oxomolybdoenzymes Part 5.1 Synthesis of 6-alkenyl- and 6-alkynylpterins

✍ Scribed by James R. Russell; C.David Garner; John A. Joule

No coin nor oath required. For personal study only.

✦ Synopsis

&Alkenylpterin (6) was prepared from pteridine (3a) and (R)-glyceraldehyde acetonide via a wittig condensation.

Treatment of 6 with bromine and then diazabicycloundecane (DBU) produced the corresponding akyne (8).

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