Metalation of triazines .2. Synthesis of bi-1,2,4-triazines and 1,2,4-triazine-6-carbaldehydes

被引：0
作者：
Glassl, B
Sinks, U
Neunhoeffer, H
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来源：
HETEROCYCLIC COMMUNICATIONS | 1996年 / 2卷 / 06期
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中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
5-Methoxy-6H-1,2,4-triazines 1a-c, 5H-1,2,4-triazine-6-diethylcarboxamides 7a,b and 3,6-diphenyl-1,2,4-triazine 4-oxide 10 were lithiated with lithium 2,2,6,6-tetramethylpiperidide and the formed lithio-1,2,4-triazines 2a-c, 8a, b, 11 reacted with chlorotrimethylsilane and other reagents to give the bi-1,2,4-triazines 3a-c,4a, b, 12, 13. 6-Lithio-1,2,4-triazines 2a, b afforded 3a, b and 5-methoxy-1,2,4-triazine-6-carbaldehydes 5a, b when reacted with N-formylpiperidine or ethyl formate.
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页码：513 / 520
页数：8
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