why CHO in salicylaldehyde is at ortho position?? and not on para..pls

1.	why CHO in salicylaldehyde is at ortho position?? and not on para..pls detail...(in Riemer Tiemann Rxn)
Answer» Answer: In Riemer Tiemann rxn, both ORTHO and para products are formed, but due to INTRAMOLECULAR H-bonding, ortho derivative are major products of rxn. Some SAY it is due to ortho effect but that's not correct and doesn't explain WELL.

why CHO in salicylaldehyde is at ortho position?? and not on para..pls detail...(in Riemer Tiemann Rxn)

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Answer:

In Riemer Tiemann rxn, both ORTHO and para products are formed, but due to INTRAMOLECULAR H-bonding, ortho derivative are major products of rxn. Some SAY it is due to ortho effect but that's not correct and doesn't explain WELL.

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why CHO in salicylaldehyde is at ortho position?? and not on para..pls detail...(in Riemer Tiemann Rxn)​

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why CHO in salicylaldehyde is at ortho position?? and not on para..pls detail...(in Riemer Tiemann Rxn)