3,4-Dihydro-2-methoxy-2-methyl-2H-1-benzopyran → 4,4a,5,6-Tetrahydro-2(3H)-naphthalenone

HRID 478072Notes

Reaction equation

HRID 478072 reaction equation
CO[C:3]1([CH3:13])[CH2:12][CH2:11][C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[O:4]1.CC1C=C2C(=CC=1)OC(OC)(C)CC2>>[CH:13]1[C:3](=[O:4])[CH2:12][CH2:11][CH:10]2[C:5]=1[CH:6]=[CH:7][CH2:8][CH2:9]2

Participants

3

Reactant 2

HCID 150548363,4-Dihydro-2-methoxy-2-methyl-2H-1-benzopyranHCID 19835400HCID 19835400, compound

Product 1

HCID 2774484,4a,5,6-Tetrahydro-2(3H)-naphthalenone

Procedure

This material is prepared according to the procedure for Preparation 3 wherein 2-methoxy-2-methylchroman is substituted for 6-methyl-2-methoxy-2-methylchroman.

Workup

  1. customThis material is prepared

Sources & evidence

ORD record
ord-430aede6b71d44c59ce247fac55a3e2c
Source dataset
uspto-grants-1989_12
Patent number
US04889947

Reaction notes

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