Ignoring stereochemistry, predict the main products of the reaction between singlet oxygen $^1\mathrm{O}_{2}$ and the following two substrates:

<MultiModal>![C/C(CC)=C/C(C)(C)C,Substrate 1](/media/uploads/d9eedf83-c993-43e6-8c93-097fdd67a4a5.png)</MultiModal>

Substrate 1

<MultiModal>![O=C(/C(C)=C/C)OC,Substrate 2](/media/uploads/45b9af05-7547-4e5a-9e76-f48eeb22620e.png)</MultiModal>

Substrate 2
忽略立体化学，请分别预测单线态氧$^1\mathrm{O}_{2}$与以下两种底物反应的主产物

<MultiModal>![C/C(CC)=C/C(C)(C)C,底物1](/media/uploads/d9eedf83-c993-43e6-8c93-097fdd67a4a5.png)</MultiModal>

底物1

<MultiModal>![O=C(/C(C)=C/C)OC,底物2](/media/uploads/45b9af05-7547-4e5a-9e76-f48eeb22620e.png)</MultiModal>

底物2
All other options are incorrect
<MultiModal>![CC(C)(C)C(OO)C(CC)=C,Product 1](/media/uploads/021b95cf-717e-44a3-b81c-ed63a54b0f1d.png)</MultiModal>

Product 1  

<MultiModal>![O=C(C(C(OO)C)=C)OC,Product 2](/media/uploads/5013450d-7d32-4ec5-ab59-8068629e13e1.png)</MultiModal>  

Product 2
<MultiModal>![CC(C)(C)C(OO)C(CC)=C,Product 1](/media/uploads/021b95cf-717e-44a3-b81c-ed63a54b0f1d.png)</MultiModal>

Product 1

<MultiModal>![O=C(C(C)(OO)C=C)OC,Product 2](/media/uploads/53af400b-3059-46a2-8811-0837142a4999.png)</MultiModal>

Product 2
<MultiModal>![CC(C)(C)C(OO)/C(C)=C/C,Product 1](/media/uploads/ef7260b0-6aa5-49dd-bf28-e93ae9d074c6.png)</MultiModal>  

Product 1  

<MultiModal>![O=C(C(C(OO)C)=C)OC,Product 2](/media/uploads/5013450d-7d32-4ec5-ab59-8068629e13e1.png)</MultiModal>  

Product 2
<MultiModal>![CC(C)(C)C(OO)/C(C)=C/C,Product 1](/media/uploads/ef7260b0-6aa5-49dd-bf28-e93ae9d074c6.png)</MultiModal>  

Product 1  

<MultiModal>![O=C(C(C)(OO)C=C)OC,Product 2](/media/uploads/53af400b-3059-46a2-8811-0837142a4999.png)</MultiModal>  

Product 2
<MultiModal>![CC(C)(C)C(OO)/C(C)=C\C,Product 1](/media/uploads/7302cfc9-7e0d-4e52-8593-1c5e632a328f.png)</MultiModal>

Product 1

<MultiModal>![O=C(C(C(OO)C)=C)OC,Product 2](/media/uploads/5013450d-7d32-4ec5-ab59-8068629e13e1.png)</MultiModal>

Product 2
<MultiModal>![CC(C)(C)C(OO)/C(C)=C\C,Product 1](/media/uploads/7302cfc9-7e0d-4e52-8593-1c5e632a328f.png)</MultiModal>  

Product 1  

<MultiModal>![O=C(C(C)(OO)C=C)OC,Product 2](/media/uploads/53af400b-3059-46a2-8811-0837142a4999.png)</MultiModal>  

Product 2
其他选项均不正确
<MultiModal>![CC(C)(C)C(OO)C(CC)=C,产物1](/media/uploads/021b95cf-717e-44a3-b81c-ed63a54b0f1d.png)</MultiModal>

产物1

<MultiModal>![O=C(C(C(OO)C)=C)OC,产物2](/media/uploads/5013450d-7d32-4ec5-ab59-8068629e13e1.png)</MultiModal>

产物2

<MultiModal>![CC(C)(C)C(OO)C(CC)=C,产物1](/media/uploads/021b95cf-717e-44a3-b81c-ed63a54b0f1d.png)</MultiModal>

产物1

<MultiModal>![O=C(C(C)(OO)C=C)OC,产物2](/media/uploads/53af400b-3059-46a2-8811-0837142a4999.png)</MultiModal>

产物2
<MultiModal>![CC(C)(C)C(OO)/C(C)=C/C,产物1](/media/uploads/ef7260b0-6aa5-49dd-bf28-e93ae9d074c6.png)</MultiModal>

产物1

<MultiModal>![O=C(C(C(OO)C)=C)OC,产物2](/media/uploads/5013450d-7d32-4ec5-ab59-8068629e13e1.png)</MultiModal>

产物2
<MultiModal>![CC(C)(C)C(OO)/C(C)=C/C,产物1](/media/uploads/ef7260b0-6aa5-49dd-bf28-e93ae9d074c6.png)</MultiModal>

产物1

<MultiModal>![O=C(C(C)(OO)C=C)OC,产物2](/media/uploads/53af400b-3059-46a2-8811-0837142a4999.png)</MultiModal>

产物2
<MultiModal>![CC(C)(C)C(OO)/C(C)=C\C,产物1](/media/uploads/7302cfc9-7e0d-4e52-8593-1c5e632a328f.png)</MultiModal>

产物1

<MultiModal>![O=C(C(C(OO)C)=C)OC,产物2](/media/uploads/5013450d-7d32-4ec5-ab59-8068629e13e1.png)</MultiModal>

产物2
<MultiModal>![CC(C)(C)C(OO)/C(C)=C\C,产物1](/media/uploads/7302cfc9-7e0d-4e52-8593-1c5e632a328f.png)</MultiModal>

产物1

<MultiModal>![O=C(C(C)(OO)C=C)OC,产物2](/media/uploads/53af400b-3059-46a2-8811-0837142a4999.png)</MultiModal>

产物2
For reaction 1, the two transition states are shown below  

<MultiModal>![[O-][O+]1C(C(C)(C)C)C1(C[H])CC](/media/uploads/7610a05e-613a-4200-bdf1-01152ca3ae43.png)</MultiModal>  

<MultiModal>![[O-][O+]1C(C(C)(C)C)C1(C[H])CC](/media/uploads/0cebbae2-1580-4668-9618-9a47f551c35e.png)</MultiModal>  

In both transition states, there is only one set of $O-H$ interactions.  

<Checkpoint>[In both transition states, there is only one set of $O-H$ interactions](1)</Checkpoint>  

However, the upward-facing methyl group of the tert-butyl group will experience repulsion with the oxygen, further increasing the transition state energy.  

<Checkpoint>[However, the upward-facing methyl group of the tert-butyl group will experience repulsion with the oxygen](1)</Checkpoint>  

For reaction 2,  

Attacking the hydrogen adjacent to the carbonyl group, the carbonyl can stabilize the transition state through conjugation, thus yielding the conjugated product.  

<Checkpoint>[Attacking the hydrogen adjacent to the carbonyl group, the carbonyl can stabilize the transition state through conjugation, thus yielding the conjugated product](1)</Checkpoint>
对于反应1来说，两种过渡态如下图所示

<MultiModal>![[O-][O+]1C(C(C)(C)C)C1(C[H])CC](/media/uploads/7610a05e-613a-4200-bdf1-01152ca3ae43.png)</MultiModal>

<MultiModal>![[O-][O+]1C(C(C)(C)C)C1(C[H])CC](/media/uploads/0cebbae2-1580-4668-9618-9a47f551c35e.png)</MultiModal>

两种过渡态中均只存在一组$O-H$相互作用

<Checkpoint>[两种过渡态中均只存在一组$O-H$相互作用](1)</Checkpoint>

但是叔丁基朝上的甲基会与氧发生排斥，进一步提高过渡态能量

<Checkpoint>[但是叔丁基朝上的甲基会与氧发生排斥](1)</Checkpoint>

对于反应2

进攻羰基邻位的氢,羰基可通过共轭效应稳定过渡态,故得到共轭产物

<Checkpoint>[进攻羰基邻位的氢,羰基可通过共轭效应稳定过渡态,故得到共轭产物](1)</Checkpoint>